Product Introduction
Product introduction
Sodium nitrate (NaNO₃) and sodium nitrite (NaNO₂) are essential inorganic salts widely used in food preservation, agriculture, and chemical industries. NaNO₃ serves as a fertilizer oxidizer and meat curing agent, while NaNO₂ (more reactive) prevents bacterial growth in processed meats and acts as a corrosion inhibitor. Both compounds require regulated use due to potential health risks at high concentrations. NaNO₂ is particularly monitored in foods to prevent nitrosamine formation. Their versatility makes them valuable across industrial and food applications.
Parameters
Parameter | Sodium Nitrate (NaNO₃) | Sodium Nitrite (NaNO₂) |
Chemical Formula | NaNO₃ | NaNO₂ |
Appearance | White crystalline powder | White/yellowish powder |
Purity | ≥99.3% | ≥98.5% |
Melting Point | 308°C | 271°C (decomposes) |
Solubility | 92g/100ml (20°C water) | 84g/100ml (20°C water) |
pH (1% Solution) | ~7 (neutral) | ~9 (alkaline) |
Bulk Density | 1.2-1.4 g/cm³ | 1.4-1.6 g/cm³ |
Storage | Cool, dry place | Sealed, avoid moisture |
Hazard Class | Oxidizer (Class 5.1) | Toxic (Class 6.1) |