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Nature of typical oxidizeable substances in OTC glacial acetic acid?
[rquote=703687&tid=161335&author=Texium]I have a lot of permanganate available for sale, alo ...
13-10-2025 at 06:18
by: Petit Homme
Access to inductively coupled plasma optical emission spectrometer, anyone?

Does any forum member have access to / is able to operate a inductively coupled plasma optical emi ...
13-10-2025 at 06:12
by: Petit Homme
Thermal behaviour of NaHSO4 as an H2SO4 substitute

As most of you know, NaHSO4 can sometimes be used as an OTC alternative to the now generally banne ...
13-10-2025 at 05:04
by: Petit Homme
Nature of typical oxidizeable substances in OTC glacial acetic acid?

Thanks for all your contributions!

If there's nothing else than small amounts of acetaldehyde a ...
13-10-2025 at 03:14
by: Petit Homme
Nature of typical oxidizeable substances in OTC glacial acetic acid?

I've got a fair amount of GAA, and I'd like to purify it.

This normally entails first oxidizin ...
10-10-2025 at 16:23
by: Petit Homme
HNO3 from KNO3 + NaHSO4

I'd like to make a small amount of HNO3 (less than a beaker full should be enough for my needs, th ...
10-10-2025 at 16:16
by: Petit Homme
Dissolving Selenium in Water with H2O2
[rquote=703586&tid=161272&author=bnull]One thought that keeps pestering me is, why do you ne ...
8-10-2025 at 19:51
by: Petit Homme
Dissolving Selenium in Water with H2O2
I'm writing back here to report that – unlike what the quoted literature seems (at least by omissi ...
8-10-2025 at 12:16
by: Petit Homme
Increase Sintered Glass ("Frit") Pore Size
[rquote=703234&tid=161293&author=jackchem2001]You could put some concentrated alkali solutio ...
15-9-2025 at 04:46
by: Petit Homme
Increase Sintered Glass ("Frit") Pore Size
[rquote=703232&tid=161293&author=Keras][rquote=703231&tid=161293&author=Sulaiman]
P ...
15-9-2025 at 04:43
by: Petit Homme
Increase Sintered Glass ("Frit") Pore Size
[rquote=703231&tid=161293&author=Sulaiman]I doubt that a column would have a frit so fine th ...
15-9-2025 at 04:27
by: Petit Homme
Increase Sintered Glass ("Frit") Pore Size
Hello,

I have a column with a sintered glass disk ("Frit") at the bottom. It's supposed to be the ...
15-9-2025 at 02:13
by: Petit Homme
Dissolving Selenium in Water with H2O2
Well, according to teodor and bnull's contributions it appears Fery's method (using HNO3) then may b ...
3-9-2025 at 02:58
by: Petit Homme
Silicone Sealant Chemical Resistance
[rquote=702923&tid=161270&author=BromicAcid]

I didn't think any of the silicones out ther ...
2-9-2025 at 06:59
by: Petit Homme
Dissolving Selenium in Water with H2O2
[rquote=702906&tid=161272&author=Fery]at first step you need HNO3 dissolve Se, then you can ...
2-9-2025 at 01:38
by: Petit Homme
Dissolving Selenium in Water with H2O2
[rquote=702904&tid=161272&author=DraconicAcid][rquote=702901&tid=161272&author=j_sum ...
2-9-2025 at 01:28
by: Petit Homme
Getting rid of Selenium Trace Metals for H2SeO3 Solution


I believe it to be [b]very much feasible[/b] to get >5N purity H2SeO3 with a fairly simple se ...
2-9-2025 at 01:07
by: Petit Homme
Silicone Sealant Chemical Resistance
[rquote=702903&tid=161270&author=j_sum1]I think this is quite a common phenomenon.
Consider ...
2-9-2025 at 00:39
by: Petit Homme
Silicone Sealant Chemical Resistance
[rquote=702900&tid=161270&author=Radiums Lab]Good question, the monomer is soluable in AA, b ...
2-9-2025 at 00:36
by: Petit Homme
Dissolving Selenium in Water with H2O2

I tried to dissolve a (black, vitreous) piece of selenium in water. I put it in 30% H2O2 under sti ...
1-9-2025 at 17:41
by: Petit Homme
Getting rid of Selenium Trace Metals for H2SeO3 Solution


I have modest chemistry understanding and experience, and know little about Selenium (except tha ...
1-9-2025 at 17:29
by: Petit Homme
Silicone Sealant Chemical Resistance


As I look for the Chemical Resistance of silicone it rates good versus glacial acetic acid. Howe ...
1-9-2025 at 17:17
by: Petit Homme
Ascorbic acid smell when boiled with chlorate
[rquote=683704&tid=159535&author=print118]Heloo,

So I tried to make a low explosive calle ...
21-5-2025 at 19:58
by: Petit Homme

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