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how to remove a silver oxide stain
Sodium thiosulfate is also good option.
4-8-2020 at 06:22
by: Bedlasky
Nitric acid
Calcium dihydrogenphosphate have solubility 2g/100ml. So if you don't mind some calcium and phosphat ...
28-7-2020 at 22:42
by: Bedlasky
Sodium nitrite from NO2 and NO?
N2O3 is present in NO/NO2 mix also at room temperature. Equilibrium strongly favors NO and NO2, but ...
28-7-2020 at 22:31
by: Bedlasky
Sodium nitrite from NO2 and NO?
NO2 reacts with NaOH in this way:

2NO2 + 2NaOH - -> NaNO2 + NaNO3 + H2O

If you want to crea ...
28-7-2020 at 02:18
by: Bedlasky
Useful perchlorate/chlorate tests
I read yesterday this article. Maybe it will be useful for someone.

[url]http://www.chlorates.exr ...
27-7-2020 at 10:59
by: Bedlasky
Cosmetics Chemistry
If I want to use benzoic or salicylic acid as a preservative, how much I should use?
24-7-2020 at 11:49
by: Bedlasky
Dimethyl oxalate synthesis problems
Few days ago this site still works.

Here are some videos:

[url]https://www.youtube.com/watch?v ...
21-7-2020 at 07:18
by: Bedlasky
Chromyl bromide
They say that chromyl bromide is soluble in chlorinated solvents, so I assume that it don't react wi ...
19-7-2020 at 10:04
by: Bedlasky
Chromyl bromide
Hi.

I read this discusion today:

[url]https://chemistry.stackexchange.com/questions/95286/why- ...
19-7-2020 at 07:32
by: Bedlasky
Scrubbing CO2 & absoprtion into LiOH or Ca(OH)2
If you want just scrub CO2, Ca(OH)2 should be fine. But if you want also generate oxygen, you need L ...
16-7-2020 at 12:22
by: Bedlasky
Dimethyl oxalate synthesis problems
Most of the preparations I found on the internet use oxalic acid dihydrate, less methanol and too mu ...
16-7-2020 at 11:47
by: Bedlasky
Brown crystals within green copper(II) chloride crystals - What are they?
Sodium salt can't be crystallized from solution. I tried it once and it didn't work.
16-7-2020 at 05:16
by: Bedlasky
Dimethyl oxalate synthesis problems
Hi.

I today started second attempt to make dimethyl oxalate. First one was failure because when I ...
15-7-2020 at 20:52
by: Bedlasky
Zinc + impurities in HCl - worries about heavy metal hydrides
Don't worry, main impurity in technical HCl is iron. Sb or As contamination is unlikely. I dissolve ...
15-7-2020 at 19:14
by: Bedlasky
Strange Copper 2 chlorate + sodium chlorate complex
Green colour can be caused by presence of chloride anions.

Btw. MnO2 is used for catalytic decomp ...
15-7-2020 at 11:17
by: Bedlasky
Most potent H2O2 decomposition catalysts available to an amateur
Many metal oxides or hydroxides (MnO2, FeO(OH), CuO, Cu(OH)2, CoO(OH), NiO(OH) etc.)

Aqueous Fe3+ ...
15-7-2020 at 09:51
by: Bedlasky
DCM strange behavior
Hi.

I accidentally spill little bit of DCM on my hand today. It quickly evaporated from my skin a ...
14-7-2020 at 15:07
by: Bedlasky
The Wump Incident
J_sum1: Your story sounds horrible. I am glad that you are fine.
14-7-2020 at 14:50
by: Bedlasky
Brown crystals within green copper(II) chloride crystals - What are they?
Dihydrate lose both waters at 100°C.
14-7-2020 at 14:32
by: Bedlasky
Ways to precipitate sodium ions?
[rquote=640648&tid=155783&author=symboom]Sodium colbaltinitrite is insoluble[/rquote]

Sod ...
14-7-2020 at 14:29
by: Bedlasky
KCN synthesis. Care to share your thoughts?
I think, that conc. sulfuric acid will oxidize HCN.
13-7-2020 at 13:40
by: Bedlasky
Ways to precipitate sodium ions?
There are few insoluble or sparingly soluble sodium salts:

NaZn(UO2)3(CH3COO)9.6H2O

NaMg(UO2)3 ...
13-7-2020 at 13:32
by: Bedlasky
Amazing fluorescent precipitate of copper(I) with propargyl alcohol
Interesting as usually, Woelen. I never heard about propargyl alcohol.
8-7-2020 at 10:11
by: Bedlasky
What causes the delays in a HCl+xNO3+Cu reaction?
[rquote=640045&tid=155730&author=AJKOER]

"In nitric acid, NOCl is readily oxidized into n ...
7-7-2020 at 02:41
by: Bedlasky
Methanol vapours
Hi.

I plan to make dimethyl oxalate. In first separation step I just let cool ester/methanol mixt ...
6-7-2020 at 13:49
by: Bedlasky
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