Ammonium Chloride Technical Grade Molecular Formula: NH4Cl IndexStandard ValuePurity(NH4Cl) ≥99.5% Moisture ≤0.7% Iron(Fe) ≤0.001% Remnant of combustion ≤0.4% Heavy Metal(Pb) ≤0.0005% Sulphate(SO4) ≤0.02% PH (200g/L, 25°C) 4.0-5.8 Characteristic: White powder Package: 25kg/bag