Ammonium bicarbonate is a white compound that crystallizes in the form of granules, plates, or columns.Because ammonium bicarbonate is a carbonate, it must not be placed with acid, which will react with ammonium bicarbonate to form carbon dioxide, making it deteriorate.But the countryside also has the use of ammonium bicarbonate and acid reaction this property, the ammonium bicarbonate in the vegetable greenhouse, the greenhouse is sealed, and the ammonium bicarbonate placed high, add dilute HCl.At this point, the ammonium bicarbonate will react with HCl to form ammonium chloride, water and carbon dioxide.The carbon dioxide increases plant photosynthesis and vegetable production, while the resulting ammonium chloride can be used again as fertilizer.There are ammonium ions in the chemical formula of ammonium bicarbonate, which is a kind of ammonium salt, and the ammonium salt can not be put together with alkali, so ammonium bicarbonate must not be put together with calcium hydroxide.