How to make Sodium hydroxymethanesulfonate
Moderators: Xen, expert, ChenBeier
-
- Sr. Member
- Posts: 28
- Joined: Wed Oct 11, 2023 2:14 am
How to make Sodium hydroxymethanesulfonate
Hello;
I am trying to synthesize sodium hydroxymethanesulfonate from formaldehyde and sodium metabisulfite.
I know that when sodium metabisulfite dissolve in water it gives sodium bisulfite
Na2S2O5 + H2O → 2 Na + 2 HSO3
Then how can i synthesize sodium hydroxymethanesulfonate with 37% formaldehyde solution.
Thank you.
I am trying to synthesize sodium hydroxymethanesulfonate from formaldehyde and sodium metabisulfite.
I know that when sodium metabisulfite dissolve in water it gives sodium bisulfite
Na2S2O5 + H2O → 2 Na + 2 HSO3
Then how can i synthesize sodium hydroxymethanesulfonate with 37% formaldehyde solution.
Thank you.
- ChenBeier
- Distinguished Member
- Posts: 1569
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
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
NaHSO3 + CH2O => HOCH2- SO3 Na
It can be produced also as byproduct from Dithionite
https://en.m.wikipedia.org/wiki/Rongalite
Re: How to make Sodium hydroxymethanesulfonate
The reaction of sodium metabisulfite with water yields sodium bisulfite, as I am aware.
run 3
run 3
- ChenBeier
- Distinguished Member
- Posts: 1569
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Re: How to make Sodium hydroxymethanesulfonate
Thats is written above already.
-
- Sr. Member
- Posts: 28
- Joined: Wed Oct 11, 2023 2:14 am
Re: How to make Sodium hydroxymethanesulfonate
Dear ChenBeier thank you for your reply.ChenBeier wrote: ↑Wed Mar 20, 2024 3:37 amIt can be produced also as byproduct from Dithionite
https://en.m.wikipedia.org/wiki/Rongalite
Rongalite is a Sodium hydroxymethanesulfinate, I am trying to produce sodium hydroxymethanesulfonate.
Can I produce sodium hydroxymethanesulfonate from dithionite?
- ChenBeier
- Distinguished Member
- Posts: 1569
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Re: How to make Sodium hydroxymethanesulfonate
Read again the Article, you get both.
-
- Sr. Member
- Posts: 28
- Joined: Wed Oct 11, 2023 2:14 am
Re: How to make Sodium hydroxymethanesulfonate
Got it @ ChenBeier.
Na2S2O4 + 2 CH2O + H2O → HO-CH2-SO3Na + HO-CH2-SO2Na
Molecular weight of Na2S2O4=174.1071 g/mol
Molecular weight of CH2O=30.0260 g/mol
Molecular weight of HO-CH2-SO3Na =134.0869 g/mol
Molecular weight of HO-CH2-SO2Na =118.0875 g/mol
Then if I dissolve 100 grams Na2S2O4 in water and add 34.4914 grams CH2O I will get 77.0140 grams HO-CH2-SO3Na and 67.8246 grams HO-CH2-SO2Na
ChenBeier wrote: ↑Wed Mar 20, 2024 3:37 am 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
Na2S2O5 + H2O → 2 Na+ + 2 HSO3−
Molecular weight of Na2S2O5=190.1065 g/mol
Molecular weight of NaHSO3=104.0609 g/mol
Molecular weight of CH2O=30.0260 g/mol
So if I dissolve 100 grams Na2S2O5 in water, I will get 109.4764 grams NaHSO3
Then I need to add 31.5886 grams formaldehyde to the mixture and I will get 141.065 grams CH3NaO4S
Is my calculations right
![Rolling Eyes :roll:](./images/smilies/icon_rolleyes.gif)
-
- Sr. Member
- Posts: 28
- Joined: Wed Oct 11, 2023 2:14 am
- ChenBeier
- Distinguished Member
- Posts: 1569
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Re: How to make Sodium hydroxymethanesulfonate
No it doesn't effect.
-
- Sr. Member
- Posts: 28
- Joined: Wed Oct 11, 2023 2:14 am