Search found 1542 matches

by ChenBeier
Wed Mar 20, 2024 3:37 am
Forum: Chemistry forum
Topic: How to make Sodium hydroxymethanesulfonate
Replies: 5
Views: 104

Re: How to make Sodium hydroxymethanesulfonate

You mix equimolar amount of bisulfite powder and formaldehyde. Let it crystallize under a good ventilated hood.

NaHSO3 + CH2O => HOCH2- SO3 Na

It can be produced also as byproduct from Dithionite

https://en.m.wikipedia.org/wiki/Rongalite
by ChenBeier
Tue Mar 19, 2024 3:05 pm
Forum: Chemistry forum
Topic: Condition of disharge sulfat anions on anode
Replies: 37
Views: 508

Re: Condition of disharge sulfat anions on anode

No I am in Europe.

I have no idea what products you get in your device.
Maybe you have to do tests and experiments.
One concern is the water free sulfuric acid. It is very hygroscopic and will absorb water from the humidity in the air.
by ChenBeier
Mon Mar 18, 2024 10:37 pm
Forum: Chemistry forum
Topic: Molecular formula of the compound CH₂O
Replies: 13
Views: 3098

Re: Molecular formula of the compound CH₂O

Possibilities CH3COOH, acetic acid, HCOOCH3 Methylformiate, HOCH2CHO Glycolaldehyde,
by ChenBeier
Mon Mar 18, 2024 11:54 am
Forum: Chemistry forum
Topic: Condition of disharge sulfat anions on anode
Replies: 37
Views: 508

Re: Condition of disharge sulfat anions on anode

You mean SO3? Sulfur trioxide, Sulfuric anhydride ?
Probably yes. Normal sulfate will convert to disulfate, trisulfate,etc.

SO4 2- + SO3 => S2O7 2-
S2O7 2- + SO3 => S3O10 2-
And so one gets ( SO4 * n SO3) 2- , this should be conductive
by ChenBeier
Mon Mar 18, 2024 10:51 am
Forum: Chemistry forum
Topic: Condition of disharge sulfat anions on anode
Replies: 37
Views: 508

Re: Condition of disharge sulfat anions on anode

Do you stay in russia or in other country.
by ChenBeier
Mon Mar 18, 2024 10:09 am
Forum: Chemistry forum
Topic: Condition of disharge sulfat anions on anode
Replies: 37
Views: 508

Re: Condition of disharge sulfat anions on anode

Dont say this to loud. The arm of the big bear can reach you every where.
by ChenBeier
Mon Mar 18, 2024 10:05 am
Forum: Chemistry forum
Topic: Molecular formula of the compound CH₂O
Replies: 13
Views: 3098

Re: Molecular formula of the compound CH₂O

The empieric formula is 30 g/mol, but the measured molar mass was 60 g/l.

It could be also 180 g/mol if it is a sugar C6H12O6 means 6 x CH2O.
Empieric formula says nothing about the real molecule. Only with 30 g/mol it could be formaldehyde.
by ChenBeier
Mon Mar 18, 2024 9:46 am
Forum: Chemistry forum
Topic: Molecular formula of the compound CH₂O
Replies: 13
Views: 3098

Re: Molecular formula of the compound CH₂O

Because the teachers has given it.
by ChenBeier
Mon Mar 18, 2024 9:41 am
Forum: Chemistry forum
Topic: Molecular formula of the compound CH₂O
Replies: 13
Views: 3098

Re: Molecular formula of the compound CH₂O

But it wasn't
It was 60 g/mol
by ChenBeier
Mon Mar 18, 2024 6:02 am
Forum: Chemistry forum
Topic: Condition of disharge sulfat anions on anode
Replies: 37
Views: 508

Re: Condition of disharge sulfat anions on anode

If you want to obtain the metal, then a aqueous solution is sufficient. The sulfat will not be attacked. Its common way to do electrolysis. If you melt a chloride you get chlorine by electrolysis. But where do you get the hydrogen. This happens only also in an aqueous solution or you have to produce...
by ChenBeier
Mon Mar 18, 2024 2:40 am
Forum: Chemistry forum
Topic: Condition of disharge sulfat anions on anode
Replies: 37
Views: 508

Re: Condition of disharge sulfat anions on anode

Use iron sulfate.

PS: For what purpose you need it?
by ChenBeier
Mon Mar 18, 2024 2:13 am
Forum: Chemistry forum
Topic: Condition of disharge sulfat anions on anode
Replies: 37
Views: 508

Re: Condition of disharge sulfat anions on anode

Ammoniumsalts will decompose to ammonia and hydrogen. The anion reacts like above to peroxodissulfate.
by ChenBeier
Mon Mar 18, 2024 2:11 am
Forum: Chemistry forum
Topic: Chemistry
Replies: 3
Views: 102

Re: Chemistry

You cannot deposit copperoxide by electrolysis. This is only possible with copper itself.
by ChenBeier
Sun Mar 17, 2024 1:34 pm
Forum: Chemistry forum
Topic: Chemistry
Replies: 3
Views: 102

Re: Chemistry

You cannot make Cu2O solution, because it is not soluble. If you create it, it will precipitate imidiatelly. Probably can make nano particles or spray version. Maybe Fehling solution could be used. https://en.m.wikipedia.org/wiki/Fehling%27s_solution Your solution can be made dissolve coppersulfat a...