1, emetic, supplement, displacement agent
2, zinc supplement and pesticide;
3, industrial material; mordant agent of printing and dyeing, preserve agent; water treatment agent; mineral separation agent
Item medicine feedstuff plating mineral separation fertilizer industry
grade
(ZnSO 4 . 7H 2 O)?Y 97-99 97-99 97-99 94-96 94-96 92-94
PH ( 50g/l solution ) ?¨1 3.0 3.0 3.0 5.0 5.0 ---
chloride (Cl )?¨1 0.2-0.6 0.2-0.6 0.2-0.6 0.6-1.0 0.6-1.0 1.0-1.5
(Mn) ?¨1 0.01-0.1 0.01-0.1 0.01-0.1 0.01-0.1 0.01-0.1 0.01-0.1
Arsenic (As) ?¨1 0.0005 0.0005 --- --- --- ---
( Fe) ?¨1 0.005 0.005 0.02-0.06 0.06-0.1 0.06-0.1 0.2-0.5
( Pb) ?¨1 0.001 0.001 0.01-0.05 0.01-0.05 0.01-0.05 0.1-0.5
(Cd) ?¨1 --- --- 0.01-0.05 0.01-0.05 0.01-0.05 0.1-0.5
(Cu) ?¨1 0.002-0.005 0.002-0.005 0.01-0.02 0.01-0.02 0.01-0.02 0.1-0.5