... 3) good quality in competitive price 4) ISO9001 nitrate 7631-99-4nitrateSodium Nitrate for industry use (NANO3)Property:Appearance:White tiny ... First class grade Qualified gradeSodium nitrate(based on dried basis),%≥ 99.7 99.3 98.5 Water content,% ≤ 1.0 1.5 ... ),%≤ 0.05 0.10 ----- Ferrum(Fe),%≤ 0.005 nitrate 7631-99-4