1.Cupric sulfate penta with Cu 25% Min 2.Cu>25%,Pb<20ppm,As<20ppm,Cd<20ppm 3.Annual output: ... 20000MT 1.Cupric sulfate penta with Cu 25% Min2.Cu>25%,Pb<20ppm,As<20ppm,Cd<20ppm3.Annual output: ... .5l Density: 2.284g/cm3l Purity: 98% Minl Cu: 25% Minl Apperance: Small blue and clean crystal.Specification: ItemStardardCuSO4.5H2O98 ... the needs of customers. Cupric sulfate penta with Cu 25% Min