Ammonium Bicarbonate Formula, Formula, Preparation Method, Chemical Properties


Understanding Ammonium Bicarbonate in Chemistry

Ammonium bicarbonate is a white crystalline salt, which is commonly used in baking and food industry as a leavening agent. It is also used as a cleaning agent and fire extinguisher in some industries. In this article, we will explore the chemical properties and uses of ammonium bicarbonate in detail.

Structural Formula

This is the structural formula of the ammonium bicarbonate:

Ammonium Bicarbonate

Chemical Formula

The chemical formula of the ammonium bicarbonate is NH4HCO3.

Preparation Method of Ammonium Bicarbonate

CO2 + NH3 + H2O → (NH4)HCO3

Physical Properties of Ammonium Bicarbonate

Melting point 41.9C
Boiling point decomposes
Molecular weight 79.056g/mol
Density 1.586g/cm3
Solubility in water 11.9g/100mL(0C)
Solubility Insoluble in methanol
Appearance White crystalline solid

Chemical Properties of Ammonium Bicarbonate

Ammonium bicarbonate is a salt that is made up of ammonium ions (NH4+) and bicarbonate ions (HCO3-). It is a strong base and weak acid, with a pH value of around 8.3. When heated, it decomposes into ammonia, water vapor, and carbon dioxide gas. This reaction is used in baking as a source of carbon dioxide to make the dough rise.

Uses of Ammonium Bicarbonate in Food Industry

Ammonium bicarbonate is a commonly used leavening agent in baking, especially in the production of traditional Chinese baked goods. It is added to the dough in small quantities, which produces carbon dioxide gas that makes the dough rise. Unlike other leavening agents like baking powder and baking soda, ammonium bicarbonate does not leave any metallic or salty aftertaste, making it a preferred choice for many food producers.

Uses of Ammonium Bicarbonate in Other Industries

In addition to its use in the food industry, ammonium bicarbonate has several other applications in different industries. It is used as a cleaning agent in the textile industry, as it helps to remove grease and oil stains from cloth. It is also used as a fire extinguisher, as it helps to suppress fire by producing carbon dioxide gas, which displaces oxygen and starves the fire of its fuel source.


In conclusion, ammonium bicarbonate is a versatile salt with a wide range of applications in different industries, particularly in the food and cleaning industries. Its ability to decompose into carbon dioxide gas and its neutral taste make it an ideal choice for many food producers. Its properties as a strong base and weak acid also make it useful in cleaning and fire suppression applications.

READ HERE  Aluminium Hydroxide Formula, Preparation Method, Chemical Properties


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