Why is hcl added in gravimetric analysis?
Score: 4.2/5 (66 votes) Why is HCl added in gravimetric analysis? HCl was added to the sample solution to prevent the precipitation of barium salts of weak acids such as CO2- 3, PO3- 4 etc., which will volatilize during ignition. The purpose of adding HCl is to convert aniline to its hydrochloride s...