... of dry cell,electroplating,dye,precision casting,tannage,etchant,feed additive and etc.Package size: 25kg,40kg,900kg,1000kg ... basis) % ≥99.5Moisture % ≤0.5Iron content (as Fe) % ≤0.0005Heavy metal (as Pb) % ≤0.0005Sulfate content (as SO4 2-) % ≤0.02PH value (200g ... /l solution, temperature 25°C)4.0-5.8Residue after ignition % ≤0.4 "RED TRIANGLE" Ammonium Chloride Industry Grade 99.5 ...