CASR |
: | 7631-90-5 |
Molecular Formula |
: | NaHSO3 |
Molecular Weight |
: | 104.06 |
| Specifications | |
|---|---|
| Description: | White granules or powder, having the odour of sulfur dioxide. |
| Solubility: | Freely soluble in water, practically insoluble in ethanol and in diethyl ether. |
| Identification A (By Chemical test): | Gives positive test for sodium |
| Identification B (By Chemical test): | Gives positive test for bisulfite |
| Clarity and colour of solution: | The solution is clear and colorless. |
| Thiosulfate (S2O3): | No turbidity is produced |
| Heavy metals: | NMT 20ppm |
| Iron (Fe): | NMT 20ppm |
| Arsenic (As): | NMT 4ppm |
| Assay: | NLT 64.0% and NMT 67.4 % of SO2 |
| Total aerobic microbial count: | NMT 100 CFU/gm |
| Total combined yeast and molds count: | NMT 100 CFU/gm |
| Pseud. aeruginosa: | should be absent/gm |
| Staphylococcus aureus: | should be absent/gm |
| E.coli: | should be absent/gm |
| Bile-tolerant gram negative bacteria: | should be absent/gm |
| Salmonella: | should be absent/10gm |
| Candida albicans: | should be absent/gm |
| Bacterial endotoxin test: | NMT 6.0 EU/gm |
