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Ammonium Carbonate

Author: Hans Lohninger

The commercial salt was formerly known as sal-volatile or salt of hartshorn (a mixture consisting of ammonium carbonate, ammonium hydrogencarbonate and ammonium carbamate) and was obtained by the dry distillation of nitrogenous organic matter such as hair, horn, decomposed urine, etc.

Ammonium carbonate can be produced by introducing CO2 into an aqueous solution of Ammonia:

2 NH3 + CO2 + H2O (NH4)2CO3

or, by heating a mixture of ammonium sulfate and calcium carbonate:

(NH4)2SO4 + CaCO3 (NH4)2CO3 + CaSO4

Last Update: 2011-05-26