Molecular formula: ZnSO 4 . H 2 O Molecular weight : 179.56
or ZnSO 4 . 7H 2 O Molecular weight : 287.56
white or slight yellow crystal or powder . efflorescence to white powder . dehydrated in 280 , decompoed in 500 . relative density 1.975 . melting point 100 .
or ZnSO 4 . 7H 2 O Molecular weight : 287.56
white or slight yellow crystal or powder . efflorescence to white powder . dehydrated in 280 , decompoed in 500 . relative density 1.975 . melting point 100 .
Standard: Company standard HHXPQB-SSX-2005