What is "ammonium bicarbonate"

n. (context inorganic compound English) NH₄HCO₃; a white powder with properties similar to those of ammonium carbonate.

Ammonium bicarbonate is an inorganic compound with formula (NH)HCO, simplified to NHCO. The compound has many names, reflecting its long history. Chemically speaking, it is the bicarbonate salt of the ammonium ion. It is a colourless solid that degrades readily to carbon dioxide, water and ammonia.