ANNEX
E 503 (ii) AMMONIUM HYDROGEN CARBONATE
Synonyms | Ammonium bicarbonate |
Definition | |
|---|---|
Einecs | 213-911-5 |
Chemical name | Ammonium hydrogen carbonate |
Chemical formula | CH5NO3 |
Molecular weight | 79,06 |
Assay | Content not less than 99,0 % |
Description | White crystals or crystalline powder |
Identification | |
Test for ammonium | Passes test |
Test for carbonate | Passes test |
pH | About 8,0 (5 % solution) |
Solubility | Freely soluble in water. Insoluble in ethanol |
Purity | |
Non-volatile matter | Not more than 500 mg/kg |
Chlorides | Not more than 30 mg/kg |
Sulphate | Not more than 30 mg/kg |
Arsenic | Not more than 3 mg/kg |
Lead | Not more than 2 mg/kg |
Mercury | Not more than 1 mg/kg |