In redox titration, sodium oxalate is used as a primary standard to standardize the potassium permanganate solution. The sodium oxalate should be acidified with diluted sulphuric acid, but not hydrochloric acid.
I want to ask why the sodium oxalate can't be acidified with hydrochloric acid.
Moreover, can anyone tell why potassium permanganate should not be acidified?
THANK YOU!!!