Ammonium stearate is a chemical compound with the chemical formula .This is an organic ammonium salt of stearic acid.
The compound can be prepared by reacting stearic acid and excess 28-30% solution. Also by reacting stearic acid and ammonium carbonate or ammonium hydroxide.
The compound forms yellow-white powder.
Soluble in methanol and ethanol; slightly soluble in water, benzene, xylene, naphtha; practically insoluble in acetone.
When heated, the powder of ammonium stearate decomposes, releasing toxic fumes of .
The compound is used to produce vanishing creams and waterproofing cements.