Loss on drying, % Anhydrous 7.0-8.5 Dihydrate 24.5-26.5 -- Loss on ignition, ¡ü% (after ignition at 800¡æ¡à25¡æfor 30 minutes) -- Anhydrous 8.5 Dihydrate 26.5 Arsenic, ¡ümg/kg 3 3 Lead, ¡ümg/kg 2 4 Cadmium, ¡ümg/kg -- 1 Mercury, ¡ümg/kg -- 1 Packing: it is packed with polyethylene bag as liner, and a compound plastic woven bag as the outer layer, the net weight of each bag is 25kg.
