... 25%min 2.blue and clean crystal 3.used for industrial grade and agriculture grade 4.exporting with good ... % Max Application: 1) Mainly used for textile mordant, agricultural pesticides, water, fungicides, preservatives, also used for tanning leather, copper plating, mineral ... used as drug treatment, also used as a cattle drive tapeworm medicine and pigs, dogs emetic drugs. Copper Sulphate for poultry ...