Seeking advice on the crystallization conditions for ammonium bicarbonate
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Ammonium bicarbonate crystals have appeared during production; seeking information on the conditions for their crystallization.
When the temperature is below 68 degrees, at a certain concentration
At environmental temperatures below 10°C, ammonium bicarbonate remains chemically stable and hardly decomposes； At 10-20°C, decomposition is not significant ； It decomposes significantly at temperatures above 30°C. The condition for the decomposition of ammonium bicarbonate is heating. The decomposition products are ammonia, carbon dioxide, and water. The equation is: NH4HCO3 — heating → NH3↑ + H2O↑ + CO2↑. Ammonium bicarbonate has a strong hygroscopicity. Ammonium bicarbonate with a high water content tends to clog.
The crystallization process is relatively complex, mainly due to issues related to the process and operations. We should start by examining the thermodynamic phase diagram of the system; if necessary, we can study this together