How do you calculate the percentage of sodium bisulphite using titration?

[barryfol]

Hi all,

i am hoping to make sodium bisulphite by passing so2 through NaOH.

However, i was wondering if anyone has a link or a method to a titration for calaulating % sodium bisulphite,

Regards,

 

[chemisttree]

It is usually titrated with iodine. Try googling "iodine titration of sulfite bisulfite". Many many hits. You may need to consult an analytical chemistry textbook for details.