CASR |
: | 7757-83-7 |
Molecular Formula |
: | Na2SO3 |
Molecular Weight |
: | 126.04 |
Specifications | |
---|---|
Appearance/Description: | Colorless crystals or white powder. |
Solubility: | Freely soluble in water; very slightly soluble in alcohol. |
Identification A (By Chemical test): | Slightly alkaline should produce pink color in solution. |
Identification B (sulfate): | Colorless solution; should yield a white precipitate with barium chloride which should insoluble in hydrochloric acid and nitric acid |
Identification C (for Sodium): | A dense white precipitate should produce. |
Identification D (By Assay): | 95.0% - 100.5% |
Assay: | 95.0% - 100.5% |
Iron: | NMT 10 ppm |
Selenium (Se): | NMT 10 ppm |
Thiosulfates: | NMT 0.1% |
Zinc (Zn): | NMT 25 ppm |
Color and clarity of solution /Appearance of solution: | Clear and colorless solution |
Total aerobic microbial count: | NMT 10 CFU/gm |
Total Yeast and mold count: | NMT 10 CFU/gm |
E.coli: | Should be absent /gm |
Pseudomonas aeruginosa: | Should be absent /gm |
Staphylococcus aureus: | Should be absent /gm |
Salmonella: | Should be absent /10 gm |
Bile-tolerant gram negative bacteria: | Should be absent /gm |
Bacterial endotoxins: | NMT 0.1 EU/mg |