Chemical formula:NH4Cl Molecular Weight:53.49 Properties: Colorless crystal or white crystal powder. It dissolves in water easily, in glycerin and little solve in alcohol, not solve in acetone and aether. Specification: Industrial grade: ú¿GB 2946-92ú¬ Inspection Item Unit First Grade Regular Grade Ammonium chloride(as NH4Cl) %Min 99.5 99.0 Moisture %Max 0.7 1.00 Iron %Max 0.001 0.003 Burnt Loss %Max 0.40 0.40 Heavy Metalú¿As Pbú¬ %Max 0.0005 0.001 Sulfate %Max 0.02 PH Valueú¿200g/l Solution at 25íµú¬ 4.0-5.8 4.0-5.8 Food grade Medical grade 99.6%