Ammonium Chloride Coarse Mesh Untreated WC Code: 01-015-03 Sales Specifications Appearance: White to Slightly off White, Fine.to Coarse Crystalline Assay (% NH4CI): 99.0 pH (5%.Sol. @ 20�°C: 4.5 Min. â?? 6.0 Max. Moisture (% H2O): 0.5 Max. Lead (Pb, pprn): 4 Max. Identification A & B: Pass/Fail Packing 50 lb paper bag, 49 bags per pallet