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Sulphurous acid as solvent
Ah, I see.
Thus MnO2 should dissolve:
MnO2+H2SO3=MnSO4(aq)+H2O
but Fe2O3 should leave an iron sul ...
31-8-2019 at 12:05
by: chornedsnorkack
Sulphurous acid as solvent
Which metal oxides do not dissolve in sulphurous acid?

It´s a fairly strong acid (pH about 1) as ...
31-8-2019 at 02:43
by: chornedsnorkack
Does Cr from some salt displaces AL from AL2(SO4)3 ?
Since Al is a nuisance to separate from Cr, why do you need it as a sulphate source?
Starting from ...
19-8-2019 at 12:47
by: chornedsnorkack
Does Cr from some salt displaces AL from AL2(SO4)3 ?
Elementary question:
do Al2(SO4)3 and Cr2(SO4)3 precipitate as separate crystals or as a solid solu ...
15-8-2019 at 20:59
by: chornedsnorkack
Producing and handling solid sulphuric acid?
[rquote=620218&tid=152940&author=Assured Fish]This would be a cool idea an all but if the go ...
12-8-2019 at 07:08
by: chornedsnorkack
Producing and handling solid sulphuric acid?
[rquote=620127&tid=152940&author=unionised]If you managed to get some solid H2SO4 it would b ...
10-8-2019 at 22:08
by: chornedsnorkack
Producing and handling solid sulphuric acid?
[rquote=620072&tid=152940&author=Ubya]i've never handled 100% sulphuric acid, but you can be ...
10-8-2019 at 01:04
by: chornedsnorkack
Producing and handling solid sulphuric acid?
1) 100 % sulphuric acid has a freezing point of 10,3 Celsius. However, sulphuric acid is fairly visc ...
9-8-2019 at 09:57
by: chornedsnorkack
Hello everyone! (Also Nitrogen Triiodide)
Actually, you need iodine monofluoride to produce NI3.

And iodine monofluoride is itself a tricky ...
9-8-2019 at 09:40
by: chornedsnorkack
Potassium perchlorate sensitivity
Potassium perchlorate is renowned as an insensitive oxidant.
It also has a low solubility and hygro ...
17-5-2019 at 22:44
by: chornedsnorkack
How to concentrate azeotropic HNO3?
You might break the 68 % azeotrope by freezing - the solid would be 55 %, and the eutectic freezing ...
8-3-2019 at 09:57
by: chornedsnorkack
White phosphorus recovery
[rquote=603582&tid=145535&author=woelen]I have very little hope for recovering the white P. ...
25-2-2019 at 21:36
by: chornedsnorkack
Lowering temperature of phosphorous distillisation
Effectively all ammonium phosphates decompose to ammonia and phosphoric acid below 200 Celsius.
Pho ...
24-2-2019 at 02:09
by: chornedsnorkack
Properties of pure permanganic acid
It can be and has been made. Stable and easily isolated.
Published in Jacs, in 1969. Sadly, only fi ...
20-2-2019 at 02:49
by: chornedsnorkack
37% HCl from 20%HCl
A table at Wikipedia:
https://en.wikipedia.org/wiki/Hydrochloric_acid
goes quite detailed about 38 ...
27-1-2019 at 07:32
by: chornedsnorkack
Boiling HNO3 plus even hotter cooking oil ?
Does nitric acid cause appreciable transesterification of fatty acid glycerides?
18-1-2019 at 09:36
by: chornedsnorkack
Choice of metal for thermite
Looked up some properties of active metals and their oxides.
Al[sub]2[/sub]O[sub]3[/sub] enthalpy o ...
23-12-2018 at 00:09
by: chornedsnorkack
Question about h2s and phosphine
[rquote=566115&tid=115153&author=unionised]If I had phosphine and I wanted phosphorus, I'd j ...
22-12-2018 at 11:50
by: chornedsnorkack
phosphorus trioxide
[rquote=554591&tid=104716&author=Melgar][rquote=554528&tid=104716&author=chornedsnor ...
20-11-2018 at 22:08
by: chornedsnorkack
Preparation of Al(HSO4)3
This:
https://pubs.acs.org/doi/abs/10.1021/ja01172a002
lists a solid phase "Al2(SO4)3.3H2SO4.12H2O ...
20-11-2018 at 12:21
by: chornedsnorkack
phosphorus trioxide
[rquote=554355&tid=104716&author=Melgar]I don't think anything short of high-temperature the ...
20-11-2018 at 11:06
by: chornedsnorkack
phosphorus trioxide
If you do have pure white P and P4O10 as starting materials, can you have a reaction
3P4O10+2P4-> ...
19-11-2018 at 13:24
by: chornedsnorkack
phosphoric acid identification
[rquote=549212&tid=101357&author=Mesa]Phosphine is not only poisonous, it combusts spontaneu ...
11-11-2018 at 00:56
by: chornedsnorkack
phosphoric acid identification
I am not confident that heating suspected hypophosphorous acid to test for decomposition is a safe i ...
2-11-2018 at 23:50
by: chornedsnorkack
Solid solutes that are less dense than the solvent?
One fairly common low density solid solute in water is salts of higher carboxylic acids with alkali ...
31-10-2018 at 22:07
by: chornedsnorkack
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