What is Electroplating? | Copper Electroplating
HTML-код
- Опубликовано: 25 сен 2020
- What is Electroplating?
Electroplating a spoon with a layer of copper
Introduction
Electroplating is a process of producing a thin and firm layer of material (such as metal) onto a surface of another metal immersed into an electrolyte solution using an electric current.
The coating produced is primarily served as decorative or corrosion protective purposes.
1. Place a copper electrode in a beaker and connect it to the positive terminal of a battery (anode position).
2. Place a spoon (metal to be electroplated) in a beaker and connect it to the negative terminal of a battery (cathode position).
3. This means that the spoon is the cathode and the copper electrode is the anode.
4. Add the copper sulphate (Cu SO4) solution to the beaker and close the switch for passage of electric current. Allow electroplating to take place for about half an hour.
5. Copper sulphate solution consists of Cu2+ and SO2- 4 ions.
6. On passage of electric current through copper sulphate solution, the positively charged Cu2+ ions (copper ions) move to the cathode ( spoon).
7. At cathode, the copper ions gain electrons and get deposited on spoon as copper metal.
Cu2+ (aq) + 2e- → Cu (metal)
8. At anode, copper is oxidised and dissolved to form Cu2+ ions.
Cu (s) → Cu2+ (aq) + 2e-
9. The sulphate ions (SO2- 4 ) remain in the solution.
10. You will observe that the spoon (cathode) has now been sufficiently coated with copper.
Thanks.
To keep watching more videos please subscribe our channel.
Smart Scholar
Science Experiments
Science Projects
Did the sulpher (Anion) got attracted to copper(Anode)?Because you didn't mentioned that please tell.
I really like this video,this has helped me to understand bout electroplating 😌
Happy to help
why electroplated metal is attaching to the base metal is it due to just metallic bond formation or there is formation of any interstitial or substitutional solid solution at the interface or any other reason ?
IT IS ACCORDIND TO AIM OF NEP 2020.EXCELLENT.
Thanks for always appreciating our channel....tomorrow we will upload two videos pertaining to experiment " Pressure- Class 8th
U just got 64 more views today
How do u know?
You mean 104k???
1M
@@nitrays_ff9260 😂😭
@@editsforyou12345 may be in future
How much volt current it would take for electroplating
I understand better than my science teacher Thankyou sir❤
My science teacher explained it better she is 68 years old in kv
Great
does the colour of copper sulphate change
Thanku so muchh 😊😊 I got to understand eletroplating really well with the help of this video❤
Glad it helped
i have watched a number of videos and this video is the best . it's easy to understand. can you do one for anodize?
Happy to help
Can anyone tell me where will the sulphate ions go if they can't be alone ???
Please confirm if the where is connected properly to the terminals in the video.
Where you see positive charge,it's anode whereas the negative sign indicates cathode
i watched this many times thanks alot becouse i didnt understand anything :)
what help do u require?
@@scienceprojects7130 dont worry sir i asked my friends some questions and using this video they explained it to me thanks
Am not well in English ,, but it's easy English and best way to teach by practical
👍
What material is the spoon made of? Iron?
Or metal
How much potential difference is required
The voltage requirement is small usually of the order of 1 to 16 volts only.
I like this video😄
thanks
Hello
Me tooo
I really like the video and understand it helps me on exam
glad it helped
What is the liquid substance ? Is that water ? Can we use iron alloy as the cathode ?
Electrolyte Solution: copper sulphate (Cu SO4) solution in the beaker
Yes we can use iron alloy at cathode what is placed at cathode gets coated with the metal placed at anode. In your case the copper metal get oxidised and reduced in the cuso4 solution gets deposited or coated on the iron alloy.
Which takes place first? First the electrolyte dissociate into copper and sulphate when the current is still off or the same happens when current is on or first the anode give Cu ?? Could u pls write in stepsss plsssss
Yes we will happy to help
Details of process have been shared in context part
Why do you use red in pic on spoon ?
As it is getting coated with copper it would change to color of copper right
Really good
Thank you! Cheers!
Why electroplating object used to be cathode only not anode pls tell
Oxidation always takes place at anode. Copper anode in this example is being oxidized (losing electrons). These electrons are gained by copper ions in the copper sulphate electrolyte. By gaining these electrons the copper ions in the solution become solid and move towards cathode and are deposited on it.
@@j.os_h bro why not sulphate ion deposit on anode
@@SarojKumar-tf4hk sulphate ions are so 2- they need to lose electron . 2 electron to be solid or get deposited on the spoon
This video making me confused.. cos the spoon using red wire.
Mescoe waleee
Freak