Preperation of Manganese Nitrate

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This video is on the process of preparing pure manganese nitrate starting with Fertilizer grade Manganese sulfate.
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13 июл 2023

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Комментарии : 22

@jtbmetaldesigns 17 дней назад

You can react manganese dioxide with nitric acid directly by reducing with VERY careful addition of hydrogen peroxide as a reducer

@ChemicalEuphoria Год назад

this video must contain nepalactone because im very attracted! awesome preparation 😊

@chemicalmaster3267 10 месяцев назад

@MysteriusBhoice 13:57 I know a way to separate iron from manganese. The first thing to do is to precipitate the manganese and iron with some sodium hydroxide and then add some dilute sodium hypochlorite to turn the manganese(II) hydroxide into manganese dioxide and if there´s any iron(II) ions this will turn it into iron(III) hydroxide. After washing the precipitate you can remove the iron(III) hydroxide from the manganese dioxide by heating it with dilute sulfuric acid,, which will dissolve it, forming iron(III) sulfate. After filtering and washing, the manganese dioxide should be pure. If you want to turn it into any soluble manganese(II) salt just react the manganese dioxide with a mixture of the corresponding acid and hydrogen peroxide.

@jrob495 4 месяца назад

Your mystery contaminant is not iron, but Mn(III) ... or (IV). PMC did a prep in which he made Mn(II) nitrate, and it's not as easy as you would think. Manganese oxidation states are sensitive to pH, and an alkaline pH favors the higher oxidation states. The sulfate is relatively stable in the +2 state but the alkaline carbonate will take up O2 from the air and make brown MnO(OH) or black MnO2. And nitric acid is weaker than sulfuric acid, and an oxidizer. Pink Mn(II) nitrate will oxidize on heating or in an alkaline milieu..

@CatboyChemicalSociety 4 месяца назад

thanks yea I suspected that and in my latest attempt I put a lot of excess acid and it seemed to work.

@nicksgarage8295 11 месяцев назад

for your full hcl cell what was the yeild of moles of chlorine per kw? not theoretical, actual yeild.

@CatboyChemicalSociety 11 месяцев назад

I had the calculations back then but that totally depends upon your membrane because if you use just ordinary pot the diffusion of chloride causes formation of hypochlorite so use proper cation membrane and seperate the Cl2 from H2 gasses because Cl2 can react with NaOH in cathode chamber. Overall my efficiency was a sad 10% compared to what it should be due to me not seperating outlet gases and leaky membranes.

@nicksgarage8295 11 месяцев назад

@@CatboyChemicalSociety What i am thinking is a glass fishtank with a seperator in the middle made of acrylic. The seperator will have a square hole cut out for a nafion n211 membrane or maybe a diy membrane like your pva glue video which will be glued to the seperator hole for water tight. Then MMO anodes on each side of the membrane. The top of the fish tank will be sealed and with pipes for the chlorine and hydrogen to escape, and will be removable for salt and naoh servicing. what do you think.

@nicksgarage8295 11 месяцев назад

@@CatboyChemicalSociety do you think your 10% efficiency is because of poor absorption like a mini absorption tower of random packing would work well, or do you think the outlet gases were not dry enough, or maybe u need a hydrogen chlorine fire / flame like done in industry. i am trying to make 80 moles of chlorine per day.

@CatboyChemicalSociety 11 месяцев назад

@@nicksgarage8295 spark plug and stun gun circuit is better since it makes a chlorine fire

@nicksgarage8295 10 месяцев назад

for your hcl generator, did you follow the diy ion exchange video exactly or did u add polysuphin resin. Also how big was your membrane?@@CatboyChemicalSociety

@niocalsgreogiro Год назад

Nice video ♥

@CatboyChemicalSociety Год назад

I'm glad you like it nyuhh

@niocalsgreogiro Год назад

@@CatboyChemicalSociety Thanks UwU

@arn_abs8882 Год назад

Should I expect MnO2 coated anodes in upcoming videos?

@CatboyChemicalSociety Год назад

yes they have some good uses but it seems I need very specific dopants to get them to perform at 200ma/cm^2 otherwise im limited to 50ma/cm^2. That additive is scary and way safer to make PbO2 XD because rather have solid than something thats a fine metal oxide vapor. I think however I have plans to modify thin layer PbO2 with an MnO2 coating for chloroalkali and other stuff as they suffer less from erosion.

@EddieTheH Год назад

@@CatboyChemicalSociety What is the scary additive? I thought it was just manganese dioxide doped with a little cobalt oxide? I figured it was just a really difficult procedure, I didn't realise it involved scary stuff!

@CatboyChemicalSociety Год назад

@@EddieTheH yea but you need other dopants that stabilize the coating allowing it to not passivate if ran past 50ma/cm². This dopant is something particularly toxic one of them being arsenic and the other alternative not much better.