Product name: Zinc sulfate heptahydrate 21.5%
Formula:ZnSO4·7H2O
CAS NO.:7446-20-0
H.S. code; 28332930
packing: In 50kg plastic woven bag with plastic liner inside. 25ton in 20’fcl
Physicochemical properties :Colorless orthorhombic crystals, granules or powder, odorless, taste astringent.
Shipment : delivery within 20days after the reception of prepayment by T/T
|
ITEMS |
UNIT |
SPECIFICATION |
|
Zn |
%min |
21.5 |
|
Pb |
(ppm) max |
10 |
|
As |
(ppm) max |
5 |
|
Cd |
(ppm) max |
10 |