Sodium Formaldehyde Bisulfite
| CAS No. | 870-72-4 | |
| Einecs No. | 212-800-9 | |
| HS Code | 2832 10 90 | |
| Molecular Formula | CH3NaO4S | |
| Molecular Weight | 134.09 g/mol | |
| Synonyms |
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STANDARD SPECIFICATIONS
| Test | Specifications |
| Appearance | White free flowing crystals |
| Assay as NaHSO<sub>3</sub>.CHOH (on dry basis) | Min 98 % |
| Thiosulphate as Pentahydrate Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>.5H2O | Max 0.05% |
| Moisture | Max 3.0% |
| pH (10% Soln) | 7.0 – 7.5 |
| Iron (Fe) | Max 100 ppm |
| Lead (Pb) | Max 50 ppm |
