I've read some of the comments, and no, my condition was definitely not caused by the light from magnesium burning. Remember, these symptoms don't ONLY point to ocular UV exposure. I've done this magnesium test in a few of my videos before, including my nitric acid and chlorosulfonic superacid videos, and I've messed with it a lot more outside of my videos as either ribbon or flash powder, and it has never given me any issues. And, most tellingly, the symptoms went away after the doctor rinsed my eyes out, which points STRONGLY to this being chemical irritation. Also, I know it might seem like I'm being rather casual about almost blinding myself (like I was when I accidentally overdosed on super-caffeine in the last video). That is just my personality and communication style: I'm not exactly the most dramatic person. I recognize the gravity of my mistakes, and the horrific outcomes that could've transpired. I want these videos to serve as reminders to be safe, and show that I'm not infallible. Mistakes can be made, and hopefully this will be the last serious mistake I make in one of my videos!
It would be worth checking for other factors that may have caused the injury. During incident investigations, it is easy to get hung up on the obvious factors and miss something else.
Yes and No. Yes, that probably is not from the magnesium burning. No, i don't think, that it's not from burning some stuff. The photokeratitis could be caused by the weird side product, which burned in 9:38. Also not from the light which got emitted in the visible range, rather UV-light, since you didn't burn much of it. The symptoms you described reminded me of working in a steel manufacturer where things got welded together. I only looked once for only a brief moment directly into the blue light which emitted by welding. And i had similar symptoms as you, although i didn't need to go to ER. But the feel of moving my eyes against sandpaper is so unique that you only can understand the uncomfort when you personally had contact with that topic.
You mentioned that you saw more intense magnesium flashes. But the wavelength of light and intensity are not necessarily coupled. A weaker flash but with more UV could do more damage than a more intense flash.
The symptoms and their delayed onset, combined with the fact you were thorough/cautious with the hand washing/shower afterwards (and before symptom onset), really makes me suspect UVC flash burn from looking at the magnesium burn experiment without eye protection. Just because you've burned magnesium, or other stuff in conjunction with magnesium, and had no ill effects (gotten lucky) before doesn't mean you can rule it out this time.
Exactly what I was thinking. I haven't gotten my eyes sunburnt before, but the ppl I know that have, described identical symptoms. A friend similarly did burn his retinas from welding (auto dimmer malfunctioned), and I got a gnarly sunburn on my face after 30 total seconds of exposure. Electrical arcs and burning metal are no joke.
Had the exact same symptoms after not wearing eye protection while watching a friend of mine weld something. Didn't even look straight into it, but I also got sunburn on my face from just these 20min or so.
@@engineer0239 Little tip for you, if you're not welding but working around people that are - wear a normal pair of plastic safety glasses, they block out 99% of the UV spectrum that gives you arc-eye.
These kids and their lack of respect for chemicals..... I've worked in industry (fine, chem, agrichem, pharma) for over 20 years.... I am still here because I respect the danger. I've done large (2000 gallon) reactions with POCl3 and nothing bad happened. Why? Because I was aware. HE does all this with out a fumehood.... gah
I made a bunch of organophosphates in my time, and most of them are fine. I will say, dealing with organophosphorus chemistry, phosphorus trichloride is a nasty one. Many synthesis have a habit of using pcl3 in large excess and having you rotavap off the excess. I might have inhaled a bit more than was safe but really felt like shit after the reaction.
Your eye troubles with the lithium aluminum hydride, and the weird color, was probably forming lithium tetrachloroaluminate, it's got that sorta greenish/yellowish tint to the pure dry form but also decays into a lotta nasty stuff on contact with moisture or flames, and the fumes of a LOT of the more volatile lithium compounds are not fun to get in your eyes and love to cause that lingering sandpaper-eyelid feeling - I speak from experience working with lithium salts on a daily basis. If I were you I'd get a full-face respirator and a spectacle kit instead of the halfmask, cause halfmask and goggles just don't cut it with a lotta things.
I think this is more likely. He's mentioned that he's burnt magnesium before (and a lot more of it) and he's never experienced that arc flash-like feeling. Not to say that it can't happen, but I think it's more likely to do with the reaction with lithium aluminium hydride.
I have a similar story to yours. A couple years ago I was sealing PCl5 in ampoules to protect it for long term storage. I had 50g, so I sealed it in five ampoules made from test tubes containing 10g each. I wore a respirator, but wasn’t wearing goggles. I thought using my M40A1 gas mask was overkill, and the goggles didn’t fit with the respirator on. I mistakenly thought it wouldn’t be an issue because the area was extremely well ventilated. Turns out I should have wore the gas mask. After the ampoules were made, I washed up, and tried to go to sleep. As soon as I shut my eyes I noticed a strong burning sensation accompanied by profuse tearing. This mostly went away when my eyes were open. I realized this was probably caused by PCl5 vapor, so I promptly washed my eyes out. It took two attempts. After rinsing them for about 20 minutes the burning, and tearing stopped completely. Lesson learned: always protect your eyes even if it requires the use of a bulky, uncomfortable gas mask. You can never be too careful. Try to build a decent fume hood, be extremely cautious with these types of phosphorus compounds. They really are quite nasty.
I'm starting to think the common factor here is PCl3: it's volatile, it forms when PCl5 is heated (which could happen if you're ampouling samples), and it was also formed when I tried distilling in the steel retort. Plus, it's also WAY more toxic (similar to cyanide actually), which, combined with its chlorinating properties, make it a much better candidate for this kind of injury. I think I'll pin this comment to show that my related experience wasn't just a fluke...right now, most people seem to be under the impression that I developed photokeratitis from the magnesium flash, which doesn't seem right to me, given how many times I've looked at much larger magnesium fires without injury.
Not completely related as no chemicals are involved, but these are also the same symptoms of arc burn. Though I doubt welding was taking place. It is just interesting to see that different causes can have the same symptoms, the feeling of sand paper when you close your eyes is really not a forgettable experience.
@@LabCoatz_Science It's too bad you unpinned your other comment with a lot of people telling you that it was most likely due to UV burn. Seems like confirmation bias Burning is not sharp "sandpaper" type of pain, and also yours did not go away after rinsing for 20 minutes. I'll copy my comment once again, it may be not useful to you, maybe it will be useful to others reading it under the pinned comment: As a welder, I can confirm, that your symptoms are exactly the same as the ones caused by harsh UV exposure. Starting not right away, massive tearing, feeling of sandpaper that grows over several hours to a degree when it's unbearable. In this case any antibacterial eye drops with anti-inflammatory effect would work (pretty much all of them). I'm not saying that is what necessarily happened to you, just saying that the symptoms you described are pretty much identical. Also in welding it's also like that, from time to time, when people around you weld and not every time you are quick enough to close your eyes, most of the times nothing happens, but rarely, suddenly it causes the symptoms in the evening after the work, by surprise, maybe the dosage just a little big bigger, from a little less of a distance from your eyes etc. (I'm talking about your "I've done this... a few times before... messed a lot... it has never given me anything remotely similar...", because in welding people usually can regularly catch glimpses of welding without a mask and nothing happens, and then one time BOOM and it happens, when seemingly they caught not more said glimpses as usual, but evidently it was a little more/more intense/from a closer distance, but it usually feels just like "what the heck, I don't remember to catch flashes more than usual!") Also, as people mentioned, some byproducts could have different wavelength/intensity of a light flash, after certain brightness visible (although not UV itself, but indicating of a proportional UV dose emitted at the same time) light intensity reaches it's peak and our eye can no longer tell apart exactly how bright it is.
@@Pootie_Tang I spoke with a medical professional about it, and they agreed this probably was not photokeratitis. My symptoms did completely go away after I had my eyes rinsed at the ER, so it was most likely from chemical exposure and not UV light. A sub-gram pile of magnesium burning for less than five seconds just isn't enough to give you "arc flash", even if it's putting off an unnatural amount of UVC. And many other chemists have confirmed that certain chemicals have delayed onset of eye irritation (I think it was either Chemiolis or That Chemist I spoke to who went through something similar).
Maybe you were exposed to too much UV light from the experiments like the one with burning magnesium, and developed photokeratitis (arc eye). I think if it was chemical transfer, water and saline would have eased the pain, but it got worse instead. This is compatible with the characteristic "sand in your eyes" sensation and eye watering, that really only goes away with time. For some people it takes minutes of staring into a UV source to get this condition, but factors like how dilated your pupils are can make you more sensitive. But i guess it's possible there is some delayed onset chemical stuff going on
@@MightyRudeGoogle didn't have a clear answer, such as the average intensity of a welding flash, and how much UV 400 (total uv filtering rated for sunlight) is effective against that. However, a welding flash is brighter than the sun on a clear and dry day, so it's very unlikely that normal prescription glasses are sufficient protection.
It was one of the ignitions but not the magnesium. Something that had low/moderate brightness in the visible spectrum but extremely bright in UV or IR. Of course, because you couldn't see the light in that range you didn't realize.
last video accidentally weighing out 10x more of a potent untested chemical to injest, this video you're in the hospital with eye tentacles. You've just earned yourself the nickname Donny Don't. In seriously tho I love your work and glad you're ok pls stay safe.
One trick to having a water free aparature is to prepare the setup for it first and then put the glassware you are using into an oven at little over 100°C to dry it up and the quickly assemble while hot.
The injury to your eye seems very similar to UV eye injury (also known as flash burn), including the symptoms you described and the delay in onset. It could have been caused by one of the ignition experiments you conducted, most likely the magnesium powder.
So I couldn't find anything for LiAlH4, but there is a paper called "Preparation and Luminescent Characteristics of UV-C Emitting ZnAl2O4 Phosphor for Sterilization Device" where they poked it with an electron beam and got some UVC emission. But I'd agree, the magnesium was likely the culprit here.
I don't believe it was, since I've handled far more intense magnesium flashes before (and more of them in a row or over a longer period of time), and never had photokeratitis from it. My chlorosulfonic and nitric acid videos actually both had similar tests, and I was fine afterward (ironically, the chlorosulfonic acid video also had me dealing with POCl3)!
@LabCoatz_Science some safety goggles have UV protection, some don't. I wouldn't rule out magnesium burning. I'm a welder and i have had very minor changes in environment drastically change the amount of UV I'd be accidentally exposed to, like the surface a light is reflecting off of, "clear" safety goggles or even direction of exposure
I don't know much about chemistry, but I work with eyes in a regional hospital, the sensation of sandpaper when moving your eyes with eyelids closed is usually due to an inflammation in the papillar surface. Can be caused by disruption of the proportion of fluid components;, salts, proteins, lipids.. chemists will know better what of this it is. Best of luck.
Praying for your health and safety. I'm sorry this happened to you. Thank you for posting this and sharing it with us, you've undoubtably saved many others through this video. I have found that sometimes when we burn the skin near our eyes, it doesnt hurt right away and it takes a while till we really feel it. You may flush it out but the pain is still there for a while.
PLEASE MAKE A SECOND CHANNEL CALLED LABNOPEZ talking about all of the things that you shouldn’t do in chemistry, and maybe demonstrating some of them for safety purposes!
I have a lot of respect for POCl3. I used it a fair few times in my undergrad career to synthesise pyrazoles from aryl ketones in my research projects. I have even distilled it before to purify it. It's some scary stuff, and I'd be terrified if my eyes had the fate of yours. Great video, please be careful next time though (although I'm sure you will)
Since we don't know how it happened I'd argue there's not much we can learn here except be extra careful, which should be the default when dealing with dangerous substances.
Exposure to anything that damages the outer layer of your eye will give you the sandpaper feeling. Yeah it could be from UV, but personally when I got UV burnt that bad the sensitivity to light was the biggest pain, which you didn't mention. And I also highly doubt it was the magnesium. So yeah like you said maybe some vapour singed the outer layer of your eye or something, not enough to eat through anything but enough to cause a bit of surface damage.
this 💯should be a pinned comment. similar injuries happened to the poor souls at that cringe crypto party where they used unfiltered UV biocide lamps as a black light on the dancefloor and everyone suffered corneal burns.
you did make a biproduct that you did not identify at 9:30 and then ignited it multiple times. could that biproduct be the answer and it just took a bit to work through the mucus of the eye before it started being noticable.
Brother gave himself chemical arc eyes😅 thank goodness you are okay dude. It reminded me of an old Discovery Channel tv show where they did the "worst" jobs possible. There was one episode where the host goes to work at a fireworks facility and the owner (who worked with him) warned him that one of the chemicals they were working with (i think it was dextrose? It was a long time ago) will make his eyes really uncomfortable when he gets to bed and to just let his eyes water away. Cheers!
On the rare occasion I'm up that late working, the same thing can happen to my eyes, I've deduced it's a combination of eye strain and skin oils getting into my eyes. Rubbing my eyes introduces more oils making it worse. Working with the chemicals previously that day might have made you more worried about the symptoms. Even when I try to wash my eyes and face it still doesn't help a whole lot and it feels a lot like you described.
Welder fabricator here, you have yourself flash burn. The sandpaper description is all I had to hear. Can happen welding, or looking at the sun, or magnesium related things. I’ve seen people get it from magnum flashers on the 4th which are primarily magnesium based I believe. You made the right call going and flushing em out given it was unknown at the time but my $ is on flash burn or as some call it arc burn.
Just be glad you didn't have to get any injections in your eye. I have had to get one every 2 months or so for the past 5 years along with getting to look directly at a green laser 4 times trying to fix an injury to one of my eyes.
I've had a shower activate/release chemicals in my fingers and cause burning (or whatever I touched to burn) a few times. Your outer layer of dead skin on your fingers is a good absorber of some chemicals (especially oils). Locked up in the dry skin they do almost nothing. Then later when you shower, your skin gets moist, puffs up a bit, releasing the oils and contaminating anything you touch.
Once was destilling quite a bit of the stuff for a reaction. Even tho it was in good fumehood, oh boy... I could smell it like for a week after that very strongly, not enjoying food and having problems breathing at night. Since then, I kinda get nauseous only seeing the structure. Good prep btw.
Please build a fume hood since you'll be doing similar future projects that might affect you in the long term. And thanks for sharing not just the video but the mistakes and the thought process behind it, be safe.
Delayed effects are so nasty. Sometimes they can appear even something like a day or two later like IIRC can happen with glacial acetic acid and formic acid in lungs.
I performed a couple of reactions with molten salts in steel containers and threads always fail. The best way is to weld a bottom to the pipe, but that welding has to be done as well as possible otherwise salts will leak through any tiny crack. About the eye irritation, it really resembles how phosgene attacks the lungs after a few hours delay. Who knows, maybe it was caused by some byproduct, not the phosphoryl trichloride.
I learned enough about chemistry to know that I know nothing about chemistry, which put an end to my lab coat explorations before I had a permanently detrimental event only one step beyond where you ended up after this dramatic adventure. Be safe.
I'm doubling my comment here, so maybe some people will find it useful: As a welder, I can confirm, that your symptoms are exactly the same as the ones caused by harsh UV exposure. Starting not right away, massive tearing, feeling of sandpaper that grows over several hours to a degree when it's unbearable. In this case any antibacterial eye drops with anti-inflammatory effect would work (pretty much all of them). I'm not saying that is what necessarily happened to you, just saying that the symptoms you described are pretty much identical. Also in welding it's also like that, from time to time, when people around you weld and not every time you are quick enough to close your eyes, most of the times nothing happens, but rarely, suddenly it causes the symptoms in the evening after the work, by surprise, maybe the dosage just a little big bigger, from a little less of a distance from your eyes etc. (I'm talking about your "I've done this... a few times before... messed a lot... it has never given me anything remotely similar...", because in welding people usually can regularly catch glimpses of welding without a mask and nothing happens, and then one time BOOM and it happens, when seemingly they caught not more said glimpses as usual, but evidently it was a little more/more intense/from a closer distance, but it usually feels just like "what the heck, I don't remember to catch flashes more than usual!")
I helped a guy do a whole mess of welding one day many long years ago - without proper eye protection - the eye problem you describe sounds very similar to mine...they called it "weld flash" from looking at the bright aura while the dude was welding
I went to the ER a few years ago after handling POCl3 with the exact same symptoms you described, it was 4 am and I needed to teach orgo lab at 8am but my eyes felt like they were full of silica gel.
my guess is that when the plate shattered, it launched micro shrapnel everywhere and one thing led to another, maybe it was in your hair, didn't rinse out completely, dried on your head, and worked its way into your eyes
Your nose and eyes are connected via tearducts, if a chemical is the cause of irritation then the nose and throat would become irritated as the chemical gets flushed out of the eyes. He says "I've burned more magnesium for longer without protection and haven't had this issue before", the problem with UV light is that it's radiation, it follows the inverse square law. If you are "one unit" away from a source and you move one more unit away, you double the distance but quarter the exposure, move one more unit away and you're three times further away but only getting one ninth the exposure (distance=1, exposure is 1/1, distance=2, exposure is 1/(2x2), distance=3, exposure is 1/(3x3), etc...) Simply leaning in a little closer, maybe not blinking at the right moment because you're expecting the flash, can be the difference between a radiation injury you recover from without incident and sunburn on your cornea.
Nice video! This seems to be the same thing that happens to welders that dont use a mask or other people working close to a welder withought wearing eye protection. The symptoms are the same, it starts watering your eyes after a few hours and then you feel like there is sand between your eyelids. Very painful. Hope you are doing well now.
Seems to be a known thing, that the symptoms of phosphorus oxychloride exposure can be delayed. I do remember that, due to steric hindrance, the reaction with alcohols is slow unless a nucleophile catalyst is used (pyridine is good for pocl3). That really sucks. I might have been a bit gung ho in the lab but I wouldn't screw around at home tbh.
Very much think this is Welder's Eye, I got it once back when I was learning to weld at 16 and this is exactly what it's like, except I fell asleep and then woke up in horrible pain. I don't know which is worse honestly...
I think it's entirely possible you did get welder's eye. Your description of the symptoms is pretty much spot on for that. It won't necessarily happen for every bright flash that hits your eye. Unless you spend 12 hours a day, 6 days a week staring right at a strong UVC source-like, say, a welder-saying that those flashes didn't affect you doesn't mean a whole lot. There's also the fact that you were burning magnesium _and_ phosphoryl chloride. Maybe the two reacted in a way that created a much stronger UVC output. Or maybe when it was mixed with any of the other compounds and burned. ...or maybe it had nothing to do with any of that. Idunno, I'm not a biographist. Point being, more research needs to be done before ruling it out. Don't mean to give you grief or nothing; just putting it out there.
Not true. It only takes a few seconds of direct unshaded exposure to a welding arc to flash burn your eyes. Distance is your friend in this situation because of the inverse square law.
Hi mate, this aligns with my experience of handling large quantities of dehydrating agents. The water reactivity of phosphoryl chloride and phosphorus pentachloride are such that you dry out and irritate your skin and mucous membranes. The dry acid formed qualitatively feels very different to 'wet' acid. When I worked with POCl/P2O5 I would always use a full face respirator in a ventilated space but often had irritated hands (under double gloves!) from the behaviour documented above. It's not well documented behaviour because you need to be working in either a badly ventilated space and working on the 10s of kilograms+ scale.
The green stuff looks like AlCl3, if it -reacts with moisture- is contaminated with FeCl3. At Uni, older aluminium chloride reagents always looked like that
Shame YT age restricted this but its not surprising as you did _something_ that caused injury to yourself. What that was is a great question. Lots of theories in the comments. The good news is eyes heal quickly. And to be honest those eye tube looking things look to me like they would feel really good.
Your symptoms are exactly how I described my experience with flash burns from UV exposure. Maybe something burning in this released more UV light than was apparent? In my case I basically had no symptoms until I finally messed up and got over some arbitrary threshold, then it happened hours later when I tried to sleep. I didn't seek medical attention, but it was eventually fine.
Last but not Least , MASK YOU USIN IS FOR CAR PAINTS ( Paint Liquid Molecules Stick to Filter ) , NEXT TIME YOU BURN/EVAPORISE STUFF , USE GAS MASK " MP-4 " AND/OR " MG -2 " " PG -1 " " FM 12" ❤
considering the clip of phosphoryl chloride and how clear it is, i believe your homemade chloride had some sort of impurities in it. despite the lesser volume, it was tinged yellow and less reactive than the sample clip. most likely, like you claimed, you needed an inert atmosphere, and slight water contamination lead to poisonous byproducts
back in 1970, having the foundation of engineering schooling, I was to choose Mechanical or Electrical engineering my natural strengths. I had had a variety of chemistry experiments with highschool friends, but I chose Electrical Engineering, as computers and Very Large Scale Integrated circuits were becoming more prominent in the market, a future promising, but with your video of the day, and as messy and threatening as a Chemical Engineering Degree might have become, I'm so much happier surviving to retirement without the hands-on-risks enthusiasm might have caused me. Regards
Agreed, there are stupid things on the internet: there are people who try to make phosphoryl chloride in their garage without a fume hood or safety equipment, based on a procedure from an online forum that seemed too good to be true, without doing any additional research.
I remember synthesizing this on first year inorg chem course. It wwas fun dropping it in water and seeing it run around in it like a tiny little drop of angry corrosive mercury
The shower may have caused the unpleasant reaction. Hydrolysis! Take care of yourself, get well soon. The reaction of table salt and P4010 is strange. It will be interesting to see which synthesis route you take for LAH. I once reduced P2NP in THF with LAH and it was very difficult to get THF completely dry, in the end I used the LAH for drying.
Your symptoms sound a lot like exposure to UV light, i.e. it started later that night, you felt like sand was in your eyes, and washing didn't help. Perhaps the burning magnesium with extra brightness from the POCl3 released more UV light than you are used to. Even a normal Mg fire can damage your eyes.
As a medic, and later a RN, I have inserted many morgan lenses. Whatever incident brought the person in, after flushing with morgan lenses, they rarely do that thing again...
I don't know exactly what your yellow compound was, but it looks quite a bit like what you get when you react phosphines with lithium. I think it's phosphide.
I've read some of the comments, and no, my condition was definitely not caused by the light from magnesium burning. Remember, these symptoms don't ONLY point to ocular UV exposure. I've done this magnesium test in a few of my videos before, including my nitric acid and chlorosulfonic superacid videos, and I've messed with it a lot more outside of my videos as either ribbon or flash powder, and it has never given me any issues. And, most tellingly, the symptoms went away after the doctor rinsed my eyes out, which points STRONGLY to this being chemical irritation.
Also, I know it might seem like I'm being rather casual about almost blinding myself (like I was when I accidentally overdosed on super-caffeine in the last video). That is just my personality and communication style: I'm not exactly the most dramatic person. I recognize the gravity of my mistakes, and the horrific outcomes that could've transpired. I want these videos to serve as reminders to be safe, and show that I'm not infallible. Mistakes can be made, and hopefully this will be the last serious mistake I make in one of my videos!
It would be worth checking for other factors that may have caused the injury. During incident investigations, it is easy to get hung up on the obvious factors and miss something else.
Yes and No.
Yes, that probably is not from the magnesium burning.
No, i don't think, that it's not from burning some stuff.
The photokeratitis could be caused by the weird side product, which burned in 9:38. Also not from the light which got emitted in the visible range, rather UV-light, since you didn't burn much of it. The symptoms you described reminded me of working in a steel manufacturer where things got welded together. I only looked once for only a brief moment directly into the blue light which emitted by welding. And i had similar symptoms as you, although i didn't need to go to ER. But the feel of moving my eyes against sandpaper is so unique that you only can understand the uncomfort when you personally had contact with that topic.
You mentioned that you saw more intense magnesium flashes. But the wavelength of light and intensity are not necessarily coupled. A weaker flash but with more UV could do more damage than a more intense flash.
And isn't burning magnesium pretty much black-body light so not likely to produce significant UVC?
High culture SKIBIDI represent 🤙
This is why you always have a friend wash you in the shower.
this can apply in any shower
Get over here and soap me up!
This seems logical, why didn't I think of it
@@radwizard okay!
@@user-xi5ej4ox5s you have a black hole?
alternative title: Synthesizing and drinking SNAILIC ACID to turn myself into a SNAIL
Based
Does that imply there is a polyatomic named snail?
An everyday occurrence in the Caves of Qud
@@kreeeprrthehut6327 yeah its a benzene ring with an alkyl chain that loops around it a couple of times like a snail shell
Now I'm just confused, lol
The symptoms and their delayed onset, combined with the fact you were thorough/cautious with the hand washing/shower afterwards (and before symptom onset), really makes me suspect UVC flash burn from looking at the magnesium burn experiment without eye protection. Just because you've burned magnesium, or other stuff in conjunction with magnesium, and had no ill effects (gotten lucky) before doesn't mean you can rule it out this time.
Exactly what I was thinking. I haven't gotten my eyes sunburnt before, but the ppl I know that have, described identical symptoms. A friend similarly did burn his retinas from welding (auto dimmer malfunctioned), and I got a gnarly sunburn on my face after 30 total seconds of exposure.
Electrical arcs and burning metal are no joke.
Had the exact same symptoms after not wearing eye protection while watching a friend of mine weld something. Didn't even look straight into it, but I also got sunburn on my face from just these 20min or so.
Yes. I worked in a grow room for a day and ended up in the hospital later that night for sunburnt eyes. Felt exactly how he described it.
Mystery not solved it seems
EDIT: "not" xD
@@engineer0239 Little tip for you, if you're not welding but working around people that are - wear a normal pair of plastic safety glasses, they block out 99% of the UV spectrum that gives you arc-eye.
"Extremely useful, turns alcohols into organophosphates!" -> Me running out the door screaming.
The way he says it so casually too. The next video is " Turning a Molsen in VX nerve agent"
Yeah, that one had me do a double take aswell.
These kids and their lack of respect for chemicals..... I've worked in industry (fine, chem, agrichem, pharma) for over 20 years.... I am still here because I respect the danger. I've done large (2000 gallon) reactions with POCl3 and nothing bad happened. Why? Because I was aware. HE does all this with out a fumehood.... gah
I made a bunch of organophosphates in my time, and most of them are fine.
I will say, dealing with organophosphorus chemistry, phosphorus trichloride is a nasty one. Many synthesis have a habit of using pcl3 in large excess and having you rotavap off the excess.
I might have inhaled a bit more than was safe but really felt like shit after the reaction.
Me not knowing what he is saying at all saying...ok that's sounds cool
Your eye troubles with the lithium aluminum hydride, and the weird color, was probably forming lithium tetrachloroaluminate, it's got that sorta greenish/yellowish tint to the pure dry form but also decays into a lotta nasty stuff on contact with moisture or flames, and the fumes of a LOT of the more volatile lithium compounds are not fun to get in your eyes and love to cause that lingering sandpaper-eyelid feeling - I speak from experience working with lithium salts on a daily basis. If I were you I'd get a full-face respirator and a spectacle kit instead of the halfmask, cause halfmask and goggles just don't cut it with a lotta things.
So you think it’s plausible it could have given a delayed reaction as well?
I think this is more likely. He's mentioned that he's burnt magnesium before (and a lot more of it) and he's never experienced that arc flash-like feeling. Not to say that it can't happen, but I think it's more likely to do with the reaction with lithium aluminium hydride.
I have a similar story to yours. A couple years ago I was sealing PCl5 in ampoules to protect it for long term storage. I had 50g, so I sealed it in five ampoules made from test tubes containing 10g each. I wore a respirator, but wasn’t wearing goggles. I thought using my M40A1 gas mask was overkill, and the goggles didn’t fit with the respirator on. I mistakenly thought it wouldn’t be an issue because the area was extremely well ventilated. Turns out I should have wore the gas mask. After the ampoules were made, I washed up, and tried to go to sleep. As soon as I shut my eyes I noticed a strong burning sensation accompanied by profuse tearing. This mostly went away when my eyes were open. I realized this was probably caused by PCl5 vapor, so I promptly washed my eyes out. It took two attempts. After rinsing them for about 20 minutes the burning, and tearing stopped completely.
Lesson learned: always protect your eyes even if it requires the use of a bulky, uncomfortable gas mask. You can never be too careful. Try to build a decent fume hood, be extremely cautious with these types of phosphorus compounds. They really are quite nasty.
I'm starting to think the common factor here is PCl3: it's volatile, it forms when PCl5 is heated (which could happen if you're ampouling samples), and it was also formed when I tried distilling in the steel retort. Plus, it's also WAY more toxic (similar to cyanide actually), which, combined with its chlorinating properties, make it a much better candidate for this kind of injury.
I think I'll pin this comment to show that my related experience wasn't just a fluke...right now, most people seem to be under the impression that I developed photokeratitis from the magnesium flash, which doesn't seem right to me, given how many times I've looked at much larger magnesium fires without injury.
Not completely related as no chemicals are involved, but these are also the same symptoms of arc burn. Though I doubt welding was taking place. It is just interesting to see that different causes can have the same symptoms, the feeling of sand paper when you close your eyes is really not a forgettable experience.
@@LabCoatz_Science It's too bad you unpinned your other comment with a lot of people telling you that it was most likely due to UV burn.
Seems like confirmation bias
Burning is not sharp "sandpaper" type of pain, and also yours did not go away after rinsing for 20 minutes. I'll copy my comment once again, it may be not useful to you, maybe it will be useful to others reading it under the pinned comment:
As a welder, I can confirm, that your symptoms are exactly the same as the ones caused by harsh UV exposure. Starting not right away, massive tearing, feeling of sandpaper that grows over several hours to a degree when it's unbearable. In this case any antibacterial eye drops with anti-inflammatory effect would work (pretty much all of them). I'm not saying that is what necessarily happened to you, just saying that the symptoms you described are pretty much identical.
Also in welding it's also like that, from time to time, when people around you weld and not every time you are quick enough to close your eyes, most of the times nothing happens, but rarely, suddenly it causes the symptoms in the evening after the work, by surprise, maybe the dosage just a little big bigger, from a little less of a distance from your eyes etc. (I'm talking about your "I've done this... a few times before... messed a lot... it has never given me anything remotely similar...", because in welding people usually can regularly catch glimpses of welding without a mask and nothing happens, and then one time BOOM and it happens, when seemingly they caught not more said glimpses as usual, but evidently it was a little more/more intense/from a closer distance, but it usually feels just like "what the heck, I don't remember to catch flashes more than usual!")
Also, as people mentioned, some byproducts could have different wavelength/intensity of a light flash, after certain brightness visible (although not UV itself, but indicating of a proportional UV dose emitted at the same time) light intensity reaches it's peak and our eye can no longer tell apart exactly how bright it is.
@@Pootie_Tang I spoke with a medical professional about it, and they agreed this probably was not photokeratitis. My symptoms did completely go away after I had my eyes rinsed at the ER, so it was most likely from chemical exposure and not UV light. A sub-gram pile of magnesium burning for less than five seconds just isn't enough to give you "arc flash", even if it's putting off an unnatural amount of UVC. And many other chemists have confirmed that certain chemicals have delayed onset of eye irritation (I think it was either Chemiolis or That Chemist I spoke to who went through something similar).
Thats a super common welder injury for those that dont take precaution.
Maybe you were exposed to too much UV light from the experiments like the one with burning magnesium, and developed photokeratitis (arc eye). I think if it was chemical transfer, water and saline would have eased the pain, but it got worse instead. This is compatible with the characteristic "sand in your eyes" sensation and eye watering, that really only goes away with time. For some people it takes minutes of staring into a UV source to get this condition, but factors like how dilated your pupils are can make you more sensitive. But i guess it's possible there is some delayed onset chemical stuff going on
His prescription glasses should protect his eyes against harmful UV light
Yeah this all sounds like welders flash
@@MightyRudenot all glasses have the UV coating I think.. At least for me, they asked me whether I wanted it
happened to me once on a beautiful morning flight down the east coast. :D
@@MightyRudeGoogle didn't have a clear answer, such as the average intensity of a welding flash, and how much UV 400 (total uv filtering rated for sunlight) is effective against that. However, a welding flash is brighter than the sun on a clear and dry day, so it's very unlikely that normal prescription glasses are sufficient protection.
kinda sounds like welder's flash but that would require UVC to be emitted from somewhere
Somewhere like a little magnesium fire perchance?
Don't say perchance @@EddieTheH
@@Anonymous-wd1dk perchance perchance.
@@Anonymous-wd1dk peradventure then
@@Anonymous-wd1dk technically, he didn't say it, he typed it...
It was one of the ignitions but not the magnesium. Something that had low/moderate brightness in the visible spectrum but extremely bright in UV or IR. Of course, because you couldn't see the light in that range you didn't realize.
I agree sounds like arc blindness, you get it from welding without protection feels like sand in your eyes
last video accidentally weighing out 10x more of a potent untested chemical to injest, this video you're in the hospital with eye tentacles. You've just earned yourself the nickname Donny Don't. In seriously tho I love your work and glad you're ok pls stay safe.
One trick to having a water free aparature is to prepare the setup for it first and then put the glassware you are using into an oven at little over 100°C to dry it up and the quickly assemble while hot.
The injury to your eye seems very similar to UV eye injury (also known as flash burn), including the symptoms you described and the delay in onset. It could have been caused by one of the ignition experiments you conducted, most likely the magnesium powder.
So I couldn't find anything for LiAlH4, but there is a paper called "Preparation and Luminescent Characteristics of UV-C Emitting
ZnAl2O4 Phosphor for Sterilization Device" where they poked it with an electron beam and got some UVC emission.
But I'd agree, the magnesium was likely the culprit here.
This def sounds like UV damage to me, likely was that enhanced magnesium burn test.
I don't believe it was, since I've handled far more intense magnesium flashes before (and more of them in a row or over a longer period of time), and never had photokeratitis from it. My chlorosulfonic and nitric acid videos actually both had similar tests, and I was fine afterward (ironically, the chlorosulfonic acid video also had me dealing with POCl3)!
@@LabCoatz_ScienceDid you wear goggles for the magnesium flash? They usually have some protection against UV. So that might rule out UV hypothesis.
@LabCoatz_Science some safety goggles have UV protection, some don't. I wouldn't rule out magnesium burning. I'm a welder and i have had very minor changes in environment drastically change the amount of UV I'd be accidentally exposed to, like the surface a light is reflecting off of, "clear" safety goggles or even direction of exposure
I don't know much about chemistry, but I work with eyes in a regional hospital, the sensation of sandpaper when moving your eyes with eyelids closed is usually due to an inflammation in the papillar surface. Can be caused by disruption of the proportion of fluid components;, salts, proteins, lipids.. chemists will know better what of this it is. Best of luck.
Huh
I know a lot of welders who talk about nearly identical symptoms if they don't use their eye protection properly.
Man that’s two scary videos in a row. Keep up the cool content but please stay safe!!!
Praying for your health and safety. I'm sorry this happened to you. Thank you for posting this and sharing it with us, you've undoubtably saved many others through this video.
I have found that sometimes when we burn the skin near our eyes, it doesnt hurt right away and it takes a while till we really feel it. You may flush it out but the pain is still there for a while.
Kudos! I like it when youtube chemists have the humility to showcase when things don't go according to plan. Brave
PLEASE MAKE A SECOND CHANNEL CALLED LABNOPEZ talking about all of the things that you shouldn’t do in chemistry, and maybe demonstrating some of them for safety purposes!
I love the stab at Sniperwolf hahahaha
I have a lot of respect for POCl3. I used it a fair few times in my undergrad career to synthesise pyrazoles from aryl ketones in my research projects. I have even distilled it before to purify it. It's some scary stuff, and I'd be terrified if my eyes had the fate of yours.
Great video, please be careful next time though (although I'm sure you will)
see. you have had an education in chemistry. He hasn't. He's a danger to himself:(
@@jamescollier3 let him cook
Just wanted to leave a comment to say I love your videos man
Here since 3k subs 🙌🏻 glad to see you grow , have tried your Tesla coil and it was awesome
Good lesson in safety!
Since we don't know how it happened I'd argue there's not much we can learn here except be extra careful, which should be the default when dealing with dangerous substances.
at 3 min, I realized this guy has no chem education, and he knows just enough to hurt or kill himself.... I'm thinking the title is not click bate
Exposure to anything that damages the outer layer of your eye will give you the sandpaper feeling. Yeah it could be from UV, but personally when I got UV burnt that bad the sensitivity to light was the biggest pain, which you didn't mention. And I also highly doubt it was the magnesium. So yeah like you said maybe some vapour singed the outer layer of your eye or something, not enough to eat through anything but enough to cause a bit of surface damage.
You are truly a mad scientist and I love it.
I saw the salt method long time ago in a Paper i wanted to try it and u were faster lol!
Great Video!
I think it goes without saying but be careful mate 😂
However, the marketing was good. I've been waiting for this ep since your community post lol
Is it possible you got a kind of welders flash from those sparks in some of those bright reactions?
That was my first thought, flash burns from the magnesium.
Yeah uv from the burning magnetism was my first thought. What he is describing sounds like classic welders eye.
I was wondering the same.
I came here to say the same. I am almost certain this is the real cause (magnesium UV burn causing "welder's eye")
this 💯should be a pinned comment.
similar injuries happened to the poor souls at that cringe crypto party where they used unfiltered UV biocide lamps as a black light on the dancefloor and everyone suffered corneal burns.
you did make a biproduct that you did not identify at 9:30 and then ignited it multiple times. could that biproduct be the answer and it just took a bit to work through the mucus of the eye before it started being noticable.
6:43 just imagined the hassle you went through to be editing this and add that little quip 😂
Thanks for the warning.
Brother gave himself chemical arc eyes😅 thank goodness you are okay dude. It reminded me of an old Discovery Channel tv show where they did the "worst" jobs possible. There was one episode where the host goes to work at a fireworks facility and the owner (who worked with him) warned him that one of the chemicals they were working with (i think it was dextrose? It was a long time ago) will make his eyes really uncomfortable when he gets to bed and to just let his eyes water away. Cheers!
Ouch. Stay safe so I continue watching you do stuff I'm never going to risk doing. lol
One time I made a POCl3 Vilsmeyer triptan adduct which was ELECTRIC BARBIE PINK. Easily the most vibrant organic synthesis I've done.
Legal WHAT? I think I see a reticle.. lol, great vid! Stay safe
On the rare occasion I'm up that late working, the same thing can happen to my eyes, I've deduced it's a combination of eye strain and skin oils getting into my eyes. Rubbing my eyes introduces more oils making it worse.
Working with the chemicals previously that day might have made you more worried about the symptoms. Even when I try to wash my eyes and face it still doesn't help a whole lot and it feels a lot like you described.
Welder fabricator here, you have yourself flash burn. The sandpaper description is all I had to hear. Can happen welding, or looking at the sun, or magnesium related things. I’ve seen people get it from magnum flashers on the 4th which are primarily magnesium based I believe. You made the right call going and flushing em out given it was unknown at the time but my $ is on flash burn or as some call it arc burn.
Thank you for sharing your experience.
It is as important to learn from failure and accident as it is from success. Maybe even more so.
Seeing the Magic Bullet ttakes me back to the 2000s infomercial era
Just be glad you didn't have to get any injections in your eye. I have had to get one every 2 months or so for the past 5 years along with getting to look directly at a green laser 4 times trying to fix an injury to one of my eyes.
That hospital stay was so good I think I’ll try it a second time
11 years is a long time to hold back the tears over the cancellation of "Firefly".
You had me at "YT censored this"
I've had a shower activate/release chemicals in my fingers and cause burning (or whatever I touched to burn) a few times. Your outer layer of dead skin on your fingers is a good absorber of some chemicals (especially oils). Locked up in the dry skin they do almost nothing. Then later when you shower, your skin gets moist, puffs up a bit, releasing the oils and contaminating anything you touch.
thank god that you are well and nothing more dangerous happened
Once was destilling quite a bit of the stuff for a reaction. Even tho it was in good fumehood, oh boy... I could smell it like for a week after that very strongly, not enjoying food and having problems breathing at night. Since then, I kinda get nauseous only seeing the structure. Good prep btw.
Great content!
I now know why my organic chemistry lab instructor only let us take 5 ml of this stuff at a time and never take it from the reagent hood
Please build a fume hood since you'll be doing similar future projects that might affect you in the long term.
And thanks for sharing not just the video but the mistakes and the thought process behind it, be safe.
Actually just finished my fume hood, and I'm hoping to make a video on the process!
@@LabCoatz_Science a video would be awesome and helpful, thank you sir
Delayed effects are so nasty. Sometimes they can appear even something like a day or two later like IIRC can happen with glacial acetic acid and formic acid in lungs.
This video was demonitized, but they showed me a commercial in front of it. AND a minute and a half into it as well!
I performed a couple of reactions with molten salts in steel containers and threads always fail. The best way is to weld a bottom to the pipe, but that welding has to be done as well as possible otherwise salts will leak through any tiny crack.
About the eye irritation, it really resembles how phosgene attacks the lungs after a few hours delay. Who knows, maybe it was caused by some byproduct, not the phosphoryl trichloride.
I’m glad your eyes are ok! I don’t feel the need to follow in your footsteps on this one.
I learned enough about chemistry to know that I know nothing about chemistry, which put an end to my lab coat explorations before I had a permanently detrimental event only one step beyond where you ended up after this dramatic adventure. Be safe.
Sounds exactly like what I had happen when I inadvertently looked at UVC light too much.
I'm doubling my comment here, so maybe some people will find it useful:
As a welder, I can confirm, that your symptoms are exactly the same as the ones caused by harsh UV exposure. Starting not right away, massive tearing, feeling of sandpaper that grows over several hours to a degree when it's unbearable. In this case any antibacterial eye drops with anti-inflammatory effect would work (pretty much all of them). I'm not saying that is what necessarily happened to you, just saying that the symptoms you described are pretty much identical.
Also in welding it's also like that, from time to time, when people around you weld and not every time you are quick enough to close your eyes, most of the times nothing happens, but rarely, suddenly it causes the symptoms in the evening after the work, by surprise, maybe the dosage just a little big bigger, from a little less of a distance from your eyes etc. (I'm talking about your "I've done this... a few times before... messed a lot... it has never given me anything remotely similar...", because in welding people usually can regularly catch glimpses of welding without a mask and nothing happens, and then one time BOOM and it happens, when seemingly they caught not more said glimpses as usual, but evidently it was a little more/more intense/from a closer distance, but it usually feels just like "what the heck, I don't remember to catch flashes more than usual!")
It has been 0 videos since the last accident.... twice. Take care of yourself bro. Good video
I am suitably terrified.
I helped a guy do a whole mess of welding one day many long years ago - without proper eye protection - the eye problem you describe sounds very similar to mine...they called it "weld flash" from looking at the bright aura while the dude was welding
Great video! It sucks that you had to go the ER though.
I went to the ER a few years ago after handling POCl3 with the exact same symptoms you described, it was 4 am and I needed to teach orgo lab at 8am but my eyes felt like they were full of silica gel.
my guess is that when the plate shattered, it launched micro shrapnel everywhere and one thing led to another, maybe it was in your hair, didn't rinse out completely, dried on your head, and worked its way into your eyes
Your nose and eyes are connected via tearducts, if a chemical is the cause of irritation then the nose and throat would become irritated as the chemical gets flushed out of the eyes.
He says "I've burned more magnesium for longer without protection and haven't had this issue before", the problem with UV light is that it's radiation, it follows the inverse square law. If you are "one unit" away from a source and you move one more unit away, you double the distance but quarter the exposure, move one more unit away and you're three times further away but only getting one ninth the exposure (distance=1, exposure is 1/1, distance=2, exposure is 1/(2x2), distance=3, exposure is 1/(3x3), etc...)
Simply leaning in a little closer, maybe not blinking at the right moment because you're expecting the flash, can be the difference between a radiation injury you recover from without incident and sunburn on your cornea.
@@rorydakin8048 thank you chat gpt (no offense) i dont think it was light that did it but maybe i wasnt listening
Nice video! This seems to be the same thing that happens to welders that dont use a mask or other people working close to a welder withought wearing eye protection. The symptoms are the same, it starts watering your eyes after a few hours and then you feel like there is sand between your eyelids. Very painful. Hope you are doing well now.
Seems to be a known thing, that the symptoms of phosphorus oxychloride exposure can be delayed.
I do remember that, due to steric hindrance, the reaction with alcohols is slow unless a nucleophile catalyst is used (pyridine is good for pocl3).
That really sucks. I might have been a bit gung ho in the lab but I wouldn't screw around at home tbh.
You are an extremely brave home chemist
Very much think this is Welder's Eye, I got it once back when I was learning to weld at 16 and this is exactly what it's like, except I fell asleep and then woke up in horrible pain. I don't know which is worse honestly...
It ia crazy that the safety warning got a YT strike.
Title written like a true mad scientist
Glad you are Ok Scary stuff.
I'm a welder and you described arc flash perfectly. UV light produced by arc welding will strip the top layer from eye balls.
extremely helpful but highly restricted but not hard to make if you know how. Thank you for your time and effort very enjoyable video.
Clearly we need to replicate that weird complex burning reaction with a UVC camera/meter to see if that's involved.
I saw the title as polyvinyl chloride, and I was like oh no! Then I reread it… uh oh…
I think it's entirely possible you did get welder's eye. Your description of the symptoms is pretty much spot on for that. It won't necessarily happen for every bright flash that hits your eye. Unless you spend 12 hours a day, 6 days a week staring right at a strong UVC source-like, say, a welder-saying that those flashes didn't affect you doesn't mean a whole lot. There's also the fact that you were burning magnesium _and_ phosphoryl chloride. Maybe the two reacted in a way that created a much stronger UVC output. Or maybe when it was mixed with any of the other compounds and burned.
...or maybe it had nothing to do with any of that. Idunno, I'm not a biographist. Point being, more research needs to be done before ruling it out. Don't mean to give you grief or nothing; just putting it out there.
Not true. It only takes a few seconds of direct unshaded exposure to a welding arc to flash burn your eyes. Distance is your friend in this situation because of the inverse square law.
Hi mate, this aligns with my experience of handling large quantities of dehydrating agents. The water reactivity of phosphoryl chloride and phosphorus pentachloride are such that you dry out and irritate your skin and mucous membranes. The dry acid formed qualitatively feels very different to 'wet' acid. When I worked with POCl/P2O5 I would always use a full face respirator in a ventilated space but often had irritated hands (under double gloves!) from the behaviour documented above.
It's not well documented behaviour because you need to be working in either a badly ventilated space and working on the 10s of kilograms+ scale.
The green stuff looks like AlCl3, if it -reacts with moisture- is contaminated with FeCl3. At Uni, older aluminium chloride reagents always looked like that
Shame YT age restricted this but its not surprising as you did _something_ that caused injury to yourself. What that was is a great question. Lots of theories in the comments. The good news is eyes heal quickly. And to be honest those eye tube looking things look to me like they would feel really good.
Your symptoms are exactly how I described my experience with flash burns from UV exposure. Maybe something burning in this released more UV light than was apparent?
In my case I basically had no symptoms until I finally messed up and got over some arbitrary threshold, then it happened hours later when I tried to sleep. I didn't seek medical attention, but it was eventually fine.
@LabCoatz_Science Thank goodness you are OK now. Hope you will be safe and successful. 😃
Last but not Least , MASK YOU USIN IS FOR CAR PAINTS ( Paint Liquid Molecules Stick to Filter ) , NEXT TIME YOU BURN/EVAPORISE STUFF , USE GAS MASK " MP-4 " AND/OR " MG -2 " " PG -1 " " FM 12" ❤
considering the clip of phosphoryl chloride and how clear it is, i believe your homemade chloride had some sort of impurities in it. despite the lesser volume, it was tinged yellow and less reactive than the sample clip. most likely, like you claimed, you needed an inert atmosphere, and slight water contamination lead to poisonous byproducts
You burnt your eyes watching the magnesium burn.
back in 1970, having the foundation of engineering schooling, I was to choose Mechanical or Electrical engineering my natural strengths. I had had a variety of chemistry experiments with highschool friends, but I chose Electrical Engineering, as computers and Very Large Scale Integrated circuits were becoming more prominent in the market, a future promising, but with your video of the day, and as messy and threatening as a Chemical Engineering Degree might have become, I'm so much happier surviving to retirement without the hands-on-risks enthusiasm might have caused me. Regards
note to myself: remove eyes before experiments
Agreed, there are stupid things on the internet: there are people who try to make phosphoryl chloride in their garage without a fume hood or safety equipment, based on a procedure from an online forum that seemed too good to be true, without doing any additional research.
People in comments: No safety glasses, magnesium reaction, yep, sounds like arc flash.
Chemical dude: Nope, impossible. Nope.
Patrick Stewart: 🤦
I remember synthesizing this on first year inorg chem course. It wwas fun dropping it in water and seeing it run around in it like a tiny little drop of angry corrosive mercury
Thanks for showing your mistakes too. That way your learning experiences become ours as well.
I vote welders eye. I've had it before, and it was just like you described.
lol you cant create current with magnets and a motor😂 proceeds to generate power with only a magnet and fan
@9:11 Lithium Aluminum Hydride is super cool ! nice one
Is it possible that you used acetone to clean up some of the spills/glassware? Chloroketones can be nasty lachrymators and quite somewhat volatile
The shower may have caused the unpleasant reaction. Hydrolysis! Take care of yourself, get well soon. The reaction of table salt and P4010 is strange. It will be interesting to see which synthesis route you take for LAH. I once reduced P2NP in THF with LAH and it was very difficult to get THF completely dry, in the end I used the LAH for drying.
Your symptoms sound a lot like exposure to UV light, i.e. it started later that night, you felt like sand was in your eyes, and washing didn't help. Perhaps the burning magnesium with extra brightness from the POCl3 released more UV light than you are used to. Even a normal Mg fire can damage your eyes.
Our RUclips Over lords is just the FBI.
Deadly cheese juice. You’ve been near my dads socks 🧦
As a medic, and later a RN, I have inserted many morgan lenses. Whatever incident brought the person in, after flushing with morgan lenses, they rarely do that thing again...
I don't know exactly what your yellow compound was, but it looks quite a bit like what you get when you react phosphines with lithium. I think it's phosphide.
Well made video have a nice day science salt man