the chemical equation of ammonium bicarbonate decomposition is nh4hco3 = △ NH3 =+H2O+CO2 =.
I. definition of chemical equation
chemical equation, also known as chemical reaction equation, is a formula to express the chemical reaction of matter by chemical formula (the structure of organic matter is generally simplified in organic chemistry).
the chemical equation not only shows the reactants, products and reaction conditions, but also shows the mass relationship between the substances, that is, the mass ratio between the substances is constant.
second, the properties of ammonium bicarbonate
ammonium bicarbonate is a white compound, which belongs to carbonate, is granular, tabular or columnar crystal, has ammonia odor, is nontoxic, and is soluble in water, but insoluble in ethanol. The aqueous solution of ammonium bicarbonate is alkaline, and its solubility varies with temperature. Attention should be paid to moistureproof, rainproof and insolation during storage and transportation, and handling should be handled with care to prevent packaging damage.
In case of fire, you can use water, spray or dry powder, carbon dioxide and foam extinguishing agent to put out the fire. Because ammonium bicarbonate is unstable when heated, it will be decomposed into ammonia, carbon dioxide and water, so it is not suitable for long-term storage under strong light. Storage conditions need to keep the container sealed and stored in a cool, dry and ventilated warehouse.
application of ammonium bicarbonate
1. agricultural field
ammonium bicarbonate contains nitrogen required for crop growth, and has the characteristics of easy solubility, easy absorption, fast fertilizer efficiency and so on, which can effectively promote plant growth. Experiments show that it can significantly improve the yield and quality of crops when used with urea and calcium superphosphate. At the same time, as an insecticide, it can control pests such as rice planthopper.
II. Food industry
Ammonium bicarbonate is mainly used as food additive and starter in food industry, mainly used to make cakes, bread, biscuits and so on. In the fermentation process, it can provide enough carbon dioxide to make pasta fluffy and taste better. In addition, as a leavening agent and buffering agent, it adds unique taste and nutrition to food during cooking.
iii. pharmaceutical industry
in the pharmaceutical industry, ammonium bicarbonate is used as an intermediate of drugs or a component of pharmaceutical preparations. Because of its weak alkalinity, it can neutralize gastric acid and relieve symptoms such as stomachache and heartburn caused by hyperacidity, and can be used to treat diseases such as hyperacidity and dyspepsia. It can also be used to produce drugs such as antibiotics, vitamins and hormones.