chemical name: copper sulfate English name: Copper Sulfate Molecular formula: CuSO 4 �·5H 2 O Molecular weight: 249.7 CAS NO: 7758-98-7 performance: Dark blue triclinic crystals or blue crystalline particles or powders. Has a disgusting metallic taste. Slow weathering in dry air. It is easily soluble in water and acidic, and the pH value of 0.1mol/L aqueous solution is 4.17 (15â??). Soluble in glycerol, soluble in dilute ethanol, insoluble in absolute ethanol. use: Nutritional supplements; antimicrobials; curing agents; processing aids. Package: Lined with polyethylene plastic bags, outer plastic woven bags, 25Kg per bag. Storage and Transportation: It should be stored in a dry, ventilated and clean warehouse, lightly packed to prevent moisture, heat, rain and moisture during transportation, and should be stacked separately from toxic items. Quality Index GB 29210-2012 Content (CuSO 4 ·5H 2 O), w/% : 98.0 - 102.0 Hydrogen sulfide does not precipitate, w/% : 0.3 Iron (Fe), w/% : 0.01 Lead (Pb), mg/kg : 4 Arsenic (As), mg/kg : 3