Property: Sallow rhomboidal, specific gravity: 2.168, melting point: 271°C, can cause burning and exploding by mixing it with organics, being with oxidizing and reducibility, easy to react with amino to form nitrogen compound at low temperature. Production capacity: 50,000ton/year Quality standard: National Grade I Technical standard: GB2367-90 Index Item Index Superior Grade Grade I Qualified Grade Content of sodium nitrite (on dry basis), %, ≥ 99.0 98.5 98.0 Moisture, %, ≤ 1.4 2.0 2.5 Chloride (by Nacl) Content (on dry basis) , %, ≤ 0.10 0.17 -- Content of water insolubles, %, ≤ 0.05 0.06 0.10 Content of sodium nitrate (on dry basis), %, ≤ 0.80 1.00 1.90