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Sodium nitrite
Chemical name:Sodium nitrite
CAS NO.:7632-00-0
Molecular formula:NaNO2
Molecular weight:69.00
Property:Appearance of white or slight yellow, orthorhombic crystals or powder. Slight salty taste, easily deliquescence, soluble in water, moisture absorption and strong. And organic matter, sulfur mix can cause a fire and explosion, with the oxidation and reduction.
Use:Mordant dyeing, silk, linen bleaching agent, metal heat treatment, plating corrosion inhibitors, chemical analysis reagent.
Quality standard:
| Item | Indicator | ||
| Excellent | First grade | Qualified | |
| Sodium content(dry basis) | ≥99.0% | ≥98.5% | ≥98.0% |
| Water content | ≤1.4% | ≤2.0% | ≤2.5% |
| Chloride (dry basis) | ≤0.10% | ≤0.17% | - |
| Water insoluble (dry basis) | ≤0.05% | ≤0.06% | - |
| Sodium nitrate (dry basis) | ≤0.80% | ≤1.00% | ≤1.90% |