Question

How to differentiate chemically between potassium chloride and potassium nitrate using a reagent

Answer 1

A process for obtaining potassium nitrate from potassium chloride and nitric acid according to claim 1, wherein the reagents are used in a proportion of 0.9 to 1 mole ofnitric acid per mole of potassium chloride.

Answer 2

Sodium carbonate gives a white precipitate of magnesium carbonate on mixing with magnesium sulphate solution. Sodium bicarbonate does form a precipitate with MgSO4 solution as magnesium bicarbonate is soluble in water. Instead of MgSO4 solution, a solution of MgCl2 or CaCl2 can also be used.