Preparation of Nitric Acid (68%) | Easier Method

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  • Опубликовано: 23 янв 2025

Комментарии • 36

  • @frankhaese_DrHaeseGroup
    @frankhaese_DrHaeseGroup 20 дней назад +1

    Beautiful and straightforward.

  • @waltonchan3931
    @waltonchan3931 12 дней назад

    Classic demo, great vid! Also, isn’t it best practice to store acids and bases very far apart, rather than on the same shelf?

    • @RiehlScience
      @RiehlScience  11 дней назад

      It might be, but I don’t have any that would react too violently. If I have an acid leak, I’d rather have bases nearby to neutralize it. The most important things not to store together is flammables and oxidizers.

  • @DanOneOne
    @DanOneOne 18 дней назад +2

    thanks. How about sulfuric acid + calcium nitrate ?
    bing AI says that :
    When sulfuric acid (H₂SO₄) reacts with calcium nitrate (Ca(NO₃)₂), it produces calcium sulfate (CaSO₄) and nitric acid (HNO₃).
    Calcium sulfate is typically in solid form, while nitric acid is in an aqueous solution.
    Do you think that AI is right?

    • @RiehlScience
      @RiehlScience  18 дней назад +4

      That should work, but the insoluble calcium sulfate is a huge pain to deal with. I’ve heard of people having it destroy glassware. I would recommend reacting the calcium nitrate with sodium carbonate to form sodium nitrate and calcium carbonate, which can be filtered off, and the sodium nitrate crystallized.

    • @DanOneOne
      @DanOneOne 18 дней назад +1

      @@RiehlScience Thank you very much! I am trying to make cheaper ingredients for Tollens reagent to mirror a glass. I need a semi-transparent mirror for my project, but it's very hard to get. 1 company that sells mirroring chemicals is angelgilding, but they are so expensive. And silver nitrate is annoyingly expensive. Also flinnsci uses ammonium nitrate, which is also hard to get. Others use just ammonia, but I understood that it's really ammonia hydroxide. I bought that one as a cleaning chemicals, but no idea if it will work. So I wonder how to produce them.

    • @RiehlScience
      @RiehlScience  18 дней назад +1

      I doubt cleaning ammonia will be concentrated enough. Usually it’s around 3-5%. You can get extra strength ammonia that’s around 10%, but even that might not be enough. Concentrated ammonia solution (25%) can be made by reacting ammonium sulfate and calcium hydroxide (both common fertilizers) and bubbling the ammonia gas into water.

    • @DanOneOne
      @DanOneOne 18 дней назад +1

      @@RiehlScience Thank you very much.

    • @guytech7310
      @guytech7310 10 дней назад

      @@RiehlScience "ammonia solution (25%) can be made by reacting ammonium sulfate and calcium hydroxide"
      Urea is a cheaper option & will decompose to Ammonia gas Around 135C.

  • @郑明龙-w6f
    @郑明龙-w6f 12 дней назад

    How many degrescelcius wlie the distillation

    • @RiehlScience
      @RiehlScience  11 дней назад +1

      Azeotropic nitric acid boils at 121°C

  • @darvinbcgloriqin1656
    @darvinbcgloriqin1656 20 дней назад +1

    Cool video. Hope you're staying safe!

  • @CMTcoolmanthings
    @CMTcoolmanthings 21 день назад +2

    Great video I'm surprised at the yield

    • @RiehlScience
      @RiehlScience  20 дней назад +2

      I even discarded a little bit that came over first (not necessary). If you keep everything, the yield is close to 95%.

  • @Ignis_1
    @Ignis_1 19 дней назад

    Why not add no water and distill over rfna?

    • @RiehlScience
      @RiehlScience  19 дней назад +3

      Because fuming nitric acid is a pain to store and work with, so 68% is used whenever possible.

    • @guytech7310
      @guytech7310 10 дней назад

      @@RiehlScience "Because fuming nitric acid is a pain to store and work with, so 68% is used whenever possible."
      You can always dilute it for storage.

    • @RiehlScience
      @RiehlScience  10 дней назад

      @ You can, but when distilling RFNA a ton of nitrogen dioxide is produced.

  • @MrTk6969
    @MrTk6969 17 дней назад

    Now how bout u make WFNA and RFNA

  • @mrgreenswelding2853
    @mrgreenswelding2853 19 дней назад +5

    I can buy nitric acid easier than sodium nitrate. Go figure.

    • @RiehlScience
      @RiehlScience  19 дней назад +2

      That's a unique problem! Let me guess, they banned nitrates but not nitric acid?

    • @mrgreenswelding2853
      @mrgreenswelding2853 19 дней назад +1

      @RiehlScience well you get a gold star! Lol! That's exactly why.

  • @mateo_mtb
    @mateo_mtb 20 дней назад +1

    great video, seems way too easy to make a substance that makes most things explosive🤣🤣

    • @RiehlScience
      @RiehlScience  16 дней назад +1

      Haha, yes! I'm thinking about making a video on perchloric acid, which is like nitric, but even stronger and more explosive!

    • @guytech7310
      @guytech7310 10 дней назад +1

      Most compounds that rapidly decompose require much higher concentration of HNO3.

    • @mateo_mtb
      @mateo_mtb 10 дней назад

      @@guytech7310 oh fair enough, would it be possible to boil off the water by creating a partial vacuum?

    • @RiehlScience
      @RiehlScience  9 дней назад

      It might be possible to break the azeotrope at a different pressure, but it’s much easier to just not add the water and distill over pure nitric acid.

    • @guytech7310
      @guytech7310 9 дней назад

      @ Easier way to make Conc NHO3 is to use the same process, but just not add any water to the boiling flask. Using NH3NO3 would also work better than KNO3\NANO3. There are dozens of YT videos how to make conc. HNO3.

  • @xiaokai-jr7ud
    @xiaokai-jr7ud 19 дней назад

    in China, owning pure nitrates is prohibited😢

    • @RiehlScience
      @RiehlScience  19 дней назад

      That's too bad, nitrates have a lot of interesting chemistry. In the U.S. they're not illegal yet, but they have been getting harder to find.

    • @bataalexander9703
      @bataalexander9703 19 дней назад

      State is a big enemy of the free citizens.

    • @guytech7310
      @guytech7310 10 дней назад

      Like China has a terrorism problem. Maybe they should prohibit poor infrastructure construction. Now that would save many lives!

  • @Farben-X
    @Farben-X 21 день назад

    😋