Ammonium carbonate is a salt with the chemical formula (NH₄)₂CO₃. Since it readily degrades to gaseous ammonia and carbon dioxide upon heating, it is used as a leavening agent and also as smelling salt.

What is sal volatile used for?

Smelling salts, also known as ammonia inhalants, spirit of hartshorn or sal volatile, are chemical compounds used as stimulants to restore consciousness after fainting.

What is the definition of sal volatile?

sal volatile. / (vɒˈlætɪlɪ) / noun. another name for ammonium carbonate. Also called: spirits of ammonia, (archaic) hartshorn a solution of ammonium carbonate in alcohol and aqueous ammonia, often containing aromatic oils, used as smelling salts.