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| CAS No. | ********7 |
| Other Names |
Ammonium Hydrogen Carbonate; Ammonium Bicarbonate baking |
| MF | NH4HCO3 |
| EINECS No. | ********5 |
| Type | Alkali; leavening agent. |
DESCRIPTION:
Ammonium Bicarbonate occurs as white crystals or as a crystalline
powder. It volatilizes rapidly at *0°, dissociating into ammonia,
carbon dioxide, and water, but it is quite stable at room
temperature. One gram dissolves in about 6mL of water. It is
insoluble in alcohol.
Function: Alkali; leavening agent.
INSPECTION STANDARD:
Assay: Not less than *9.0% and not more than
**0.5% of NH4HCO3.
Chloride:Not more than 0.**3%.
Lead: Not more than 3 mg/kg.
Nonvolatile Residue:Not more than 0.*5% (0.*5% for products
containing a suitable anticaking agent).
Sulfur:Compounds (as SO4) Not more than 0.**7%.
Solubility:Freely soluble in water, insoluble in
ethanol
Heat test:When heated, it volatilizes without charring and
the vapour is alkaline to moist litmus.
