How to estimate sulphur in an organic compound?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

A known mass of an organic compound is heated in a Carius tube with sodium peroxide or fuming nitric acid. Sulphur present in the compound is oxidized to sulphuric acid. It is precipitated as barium sulphate by adding excess of barium chloride solution in water. The percentage of sulphur can be estimated from the mass of barium sulphate.

Answered by  | 4th Jun, 2014, 03:23: PM