CASR |
: | 144-55-8 |
Molecular Formula |
: | NaHCO3 |
Molecular Weight |
: | 84.01 |
Specifications | |
---|---|
Appearance: | White or almost white crystalline powder. |
Solubility: | Soluble in water, practically insoluble in alcohol. |
Identification A (By Chemical test): | A pale pink color should produce. On heating; gas evolves and the solution becomes red. |
Identification B (Reaction of carbonates & bicarbonate: | A white precipitate should form which dissolves on addition of an excess of hydrochloric acid |
Identification C (Sodium): | A dense white precipitate should form |
Appearance of solution: | Clear and colorless solution |
Carbonate: | pH of the freshly prepared solution should not be greater than 8.6 |
Chlorides: | 150ppm max |
Sulphate (SO4): | 150ppm max |
Ammonium: | 20ppm max |
Arsenic (As): | 2ppm max |
Calcium (Ca): | 100ppm max |
Iron (Fe): | 20ppm max |
Assay: | 99.0% - 101.0% |