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ANNEX I

E 503(ii) AMMONIUM HYDROGEN CARBONATE

SynonymsAmmonium bicarbonate
Definition
Chemical nameAmmonium hydrogen carbonate
Einecs213-911-5
Chemical formulaCH5NO3
Molecular weight79,06
AssayContent not less than 99,0 %
DescriptionWhite crystals or crystalline powder
Identification
A.Positive tests for ammonium and for carbonate
B.pH of a 5 % solution
about 8,0
C.Solubility
Freely soluble in water. Insoluble in ethanol
Purity
Non-volatile matterNot more than 500 mg/kg
ChloridesNot more than 30 mg/kg
SulphateNot more than 30 mg/kg
ArsenicNot more than 3 mg/kg
LeadNot more than 5 mg/kg
MercuryNot more than 1 mg/kg