... price 4)Cu>25%, Pb<10ppm,As<5ppm Molecular Formula: CuSO4·5H2OMolecular Weight: 249·68 Properties: blue transparent crystal, relative density ... bactericide, insecticides etc.Itemsecond qualityFirst qualityBest qualityFeed gradeElectroplating gradeCopper sulfate (CuSO4·5H2O) %≥94969898.599Acidity (H2SO4) %≤0.20.20.20.20.2Insol. in ...