Definition - What does Ammonium Carbonate mean?
Ammonium carbonate is a chemical substance that presents as a colorless crystalline solid or as a white powder with a strong odor. Its molecular formula is CH8N2O3. It is often used to perform stress corrosion cracking tests of mild steel and other metallic substrates.
Corrosionpedia explains Ammonium Carbonate
Stress corrosion cracking (SCC) is a gradual breaking that occurs in metals due to a combination of tensile stress and a corrosion propagating external environment. The response of mild steel in such an environment is assessed in an ammonium carbonate test solution at temperatures below the boiling point of water. A range is measured to determine the minimum time for a failure to occur while under stress.
Ammonium carbonate is also widely used as a reducing agent for the preparation of an iron-catalyst for the extraction of zinc, copper and nickel.