Winkler method for dissolved oxygen
Posted: 10 Sep 2008, 15:16
I have been asked to make up a sodium iodate solution for senior chemistry to measure the dissolved oxygen in water.
The recipe calls for 50 gm of NaOH and 15 gms sodium Iodate in 100 mls water which I figured was 12M solution of NaOH.
This sounds REALLY strong and I was wondering if anyone could tell me if the procedure was still able to be done with a somewhat weaker solution as 11-12 arn't allowed that strong. 12 M is teacher only.
Wendy
The recipe calls for 50 gm of NaOH and 15 gms sodium Iodate in 100 mls water which I figured was 12M solution of NaOH.
This sounds REALLY strong and I was wondering if anyone could tell me if the procedure was still able to be done with a somewhat weaker solution as 11-12 arn't allowed that strong. 12 M is teacher only.
Wendy