Specifications:
Copper Sulphate 98 % (Metallic Copper 25%) 
Inert Ingredients: 
Humidity (Approximately):1% 
Insoluble Water:0,20% 
Soluble Fe and AL Compounds:0,30% 
Impurities: 
Lead (Pb): Max.40 ppm 
Arsenic(As): Max.8 ppm 
Cadmium(Cd): Max.8 ppm 
Acidity, Alcalinity or PH: 
Acidity % (H2SO4):0,10 
PH:3,5 
Fineness Degree:92 % less than 0,8mm[...]