Sodium Nitrite
CAS: 7632-00-0
Category: Inorganic Chemicals
| Purity | Industrial Grade ≥98.0%, Food Grade ≥99.0%, Analytical Grade ≥99.0% |
| Molecular Formula | NaNO2 |
| Molecular Weight | 68.99 |
| Appearance | White to slightly yellow crystalline powder or granular solid, odorless |
| Packaging | 25 kg polyethylene-lined kraft paper bags, 50 kg plastic woven bags, 500 kg or 1000 kg jumbo bags, or customized industrial packaging |
| Testing Indicators | Appearance — Visual inspection; Identification — Nitrite reaction test; Assay — Redox titration with potassium permanganate or iodometric titration; Sodium content — Atomic absorption spectroscopy (AAS) or ICP-OES; Chloride content — Ion chromatography; Water content — Karl Fischer titration (ASTM E203); Heavy metals — ICP-OES/ICP-MS analysis; Insoluble matter — Gravimetric method; pH of aqueous solution — pH meter measurement. |
| Storage Notes | Store in a cool, dry, and well-ventilated warehouse away from heat sources and direct sunlight. Keep containers tightly sealed and protected from moisture. Store separately from acids, ammonium compounds, reducing agents, combustible materials, and organic substances. Avoid contamination and use clean, dry equipment during handling. |
| Lead Time | 10 days |
Sodium nitrite is an important inorganic nitrite salt widely used as an industrial chemical raw material. It is mainly applied as a corrosion inhibitor in metal treatment, heat transfer systems, and industrial processes. It is also used as a diazotizing agent in organic synthesis, an intermediate for dyes and pharmaceuticals, a curing agent and preservative in controlled food applications, and a reagent in analytical chemistry.