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Extracting copper and nickel from a coin I'm fairly sure that, like AgI, CuI will dissolve in a solution of Na2S2O3	2-5-2020 at 05:47 by: unionised
Removing orange dye from sodium silicate solution? I suspect that you might be trying to remove Fe(III) by oxidation. Good luck. https://patents.goog ...	2-5-2020 at 05:34 by: unionised
Old bath oil is... fluorescent! Something that is brightly fluorescent probably doesn't contain much fluorescent material. [Edite ...	30-4-2020 at 06:49 by: unionised
Evaporating bleach - what would come out? If you dry bleach there's a fair to middling chance that you will get salt. Bleach slowly evolves ...	26-4-2020 at 09:57 by: unionised
Quantitative preparation of boric acid (from borax) I think methanol would be a better bet than IPA. Also, now that I think of it, it's probably better ...	26-4-2020 at 03:35 by: unionised
Quantitative preparation of boric acid (from borax) Crystalise out the boric acid as far as you can. Then dry the solution down to form crystalline sod ...	26-4-2020 at 02:18 by: unionised
Storage of lead azide [rquote=634595&tid=155222&author=Katie] keep in a 100ml Pyrex reagent bottle [/r ...	23-4-2020 at 09:21 by: unionised
COVID-19 heat resistance ? [rquote=634617&tid=155230&author=MadHatter]140-degree Fahrenheit temperatures typically use ...	23-4-2020 at 03:53 by: unionised
Accurate DIY solubility measuring Dissolves solids meters make the assumption that all materials have the same conductivity. That's n ...	22-4-2020 at 06:39 by: unionised
Use For Menthol? I sometimes wondered if it could be used like camphor in Rast's method for measuring molar masses. ...	19-4-2020 at 01:53 by: unionised
Chemical attack inside the flask The silica gell beads you get in little bags that say "do not eat" do a much better job as boiling c ...	18-4-2020 at 12:23 by: unionised
Was shipped wrong item, got a bottle of glucose instead of choline chloride. Anything cool I can do with glucose? Fermentation and distillation?	18-4-2020 at 04:06 by: unionised
Potassium Hexacyanochromate III Cr(II) is a pretty strong reducing agent. In alkaline conditions it's quite capable of reducing wate ...	13-4-2020 at 06:50 by: unionised
Chemical separation challenge To a fair approximation, alcohol will dissolve the urea, but leave the others behind. There are t ...	12-4-2020 at 02:44 by: unionised
Hand sanitizer ratio [rquote=633872&tid=155157&author=Db33] I also asked the maker of the formula if they knew ...	10-4-2020 at 16:29 by: unionised
heating media's for heat bath ?! At a pinch, you can use cooking oil. https://en.wikipedia.org/wiki/Smoke_point or engine oil http ...	10-4-2020 at 05:22 by: unionised
Why have different colour lids? Duran bottles use blue and red to colour code the material from which the lid is made red for polyb ...	7-4-2020 at 12:41 by: unionised
Make Phosphoric acid It is almost certainly possible to make HCl by heating KCl with H3PO4 (by analogy with one of the ...	4-4-2020 at 03:30 by: unionised
benzyl alcohol + sulphuric acid = ? benzyl alcohol + sulphuric acid = tar. [Edited on 3-4-20 by unionised]	3-4-2020 at 11:24 by: unionised
Potassium Hexacyanochromate III The one problem I foresee is that the pH might be a impossible Cr(II) isn't very stable at the best ...	31-3-2020 at 09:49 by: unionised
Leuckart reaction with oxalic acid Probably, but paraformaldehyde is cheaper than permanganate.	31-3-2020 at 09:44 by: unionised
Leuckart reaction with oxalic acid I'd avoid the oxidation by permanganate since it also attacks formic acid.	31-3-2020 at 08:29 by: unionised
Leuckart reaction with oxalic acid [rquote=633339&tid=155102&author=clearly_not_atara]You can also make formic acid from oxalic ...	31-3-2020 at 08:27 by: unionised
Leuckart reaction with oxalic acid "Primary and secondary amines are N-methylated by a mixture of paraformaldehyde..." Just for a st ...	30-3-2020 at 10:39 by: unionised
Potassium Hexacyanochromate III Exchange of ligands on Cr(III) is notoriously slow. Is it worth considering reduction to Cr(II) the ...	30-3-2020 at 08:16 by: unionised
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