Advices

How to Prepare Ammonia Gas

How to Prepare Ammonia Gas

These are instructions for preparing ammonia gas (NH3) from ammonium chloride and calcium hydroxide in water.

Ammonia Reactants

ammonium chloride (NH4Cl)
calcium hydroxide Ca(OH)2

Gas Preparation

Gently heat a mixture of ammonium chloride and calcium hydroxide in water. Collect the ammonia from the upward displacement of air in a hood.

Chemical Reaction

Ca(OH)2 + 2NH4Cl → 2NH3 + CaCl2 + 2H2O