Physicochemical Properties: white or slight yellow crystal. Specific Density: 2.168（20°C）. It is easily soluble in water and aqueous ammonia ; while it is slightly dissolved in methanol, alcohol, and solvent ether. In addition, it shows strong hydroscopic property.
Applications and Usages: it is mostly used in manufacturing nitro-compound, azo dyestuff, dye mordant in textile coloration, bleaching agent, metal heat treatment auxiliary agent, and in pharmaceutical industry.
Product Specification:（GB2367-90）
|
Indexes |
Superior quality grade |
First Class Grade |
Qualified grade |
|
Sodium nitrite（based on dried basis），% ≥ |
99.0 |
98.5 |
98.0 |
|
Sodium nitrate（based on dried basis），% ≤ |
0.80 |
1.00 |
1.90 |
|
Chloride （based on dried basis），% ≤ |
0.10 |
0.17 |
--- |
|
Water content，% ≤ |
1.8 |
2.0 |
2.5 |
|
Water insoluble（based on dried basis），% ≤ |
0.05 |
0.06 |
0.10 |