Sodium nitrite: Properties: 1) White or light yellow prismatic crystal 2) Density: 2.168 3) Melting point: 271 Celsius Degree 4) Easy to dissolve in water and alcohol 5) Micro-dissolve in ether, noxious 6) Decomposition temperature is 320 Celsius Degree 7) It can inflammation and explosive while mixed with organic compound 8) It has oxidation and reduction susceptibility and can easy become diazoamino compounds with amino under low temperature Applications: 1) Produce nitro-compounds and azo dyes, fabric dye mordant and bleaching agent 2) Produce metal heat treating agent 3) Cement pre-strong agent, antifreezer, medicine-making and chemical industry Specifications: 1) Sodium nitrite content (as dry basis): 98.5% min. 2) Moisture: 2.0% max. 3) Choridum (NaCl) content (as dry basis): 0.17% max. 4) Water insoluble content (as dry basis): 0.06% max. 5) Sodium nitrate content (as dry basis): 1.00% max.