Preparation of White Fuming Nitric Acid

Add 30 g of dry potassium nitrate and 40 mL of conc. sulfuric acid in a distillation flask, with stirring, collect the fraction which comes off at 75-85℃ in a vacuum. The collecting flask should be cooled with cold water. Store in freezer.

KNO3 + H2SO4 → KHSO4 + HNO3

Source

CIMG1565

Distillation under vacuum

CIMG1569

The WFNA

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