 |
 |
|
|
|
| zinc sulphate,heptahydrate |
 |
| ZnSO 4 . H 2 O |
 |
1 , emetic, supplement, displacement agent
2 , zinc supplement and pesticide
3 , industrial material
mordant agent of printing and dyeing, preserv agent
water treatment agent
mineral separation agent |
 |
zinc sulphate,heptahydrate
Properties:
Molecular formula: ZnSO 4 . H 2 O Molecular weight : 179.56
or ZnSO 4 . 7H 2 O Molecular weight : 287.56
white or slight yellow crystal or powder . efflorescence to white powder . dehydrated in 280 ℃, decompoed in 500 ℃ . relative density 1.975 . melting point 100 ℃.
Standard: Company standard HHXPQB-SSX-2005
Technical index : % （ m/m ）
Item
medicine
feedstuff
plating
mineral separation
fertilizer
industry
grade
( ZnO)
Main assay (ZnSO 4 . H 2 O)≥
(ZnSO 4 . 7H 2 O)
22-23
97-99
22-23
97-99
22-23
97-99
21-22
94-96
21-22
94-96
19-20
92-94
PH （ 50g/l solution ） ≤
3.0
3.0
3.0
5.0
5.0
－
chloride ( Cl ) ≤
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） ≤
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） ≤
0.0005
0.0005
－
－
－
－
（ Fe ） ≤
0.005
0.005
0.02-0.06
0.06-0.1
0.06-0.1
0.2-0.5
（ Pb ） ≤
0.001
0.001
0.01-0.05
0.01-0.05
0.01-0.05
0.1-0.5
（Cd） ≤
－
－
0.01-0.05
0.01-0.05
0.01-0.05
0.1-0.5
（Cu） ≤
0.002-0.005
0.002-0.005
0.01-0.02
0.01-0.02
0.01-0.02
0.1-0.5
Uses:
1 , emetic, supplement, displacement agent
2 , zinc supplement and pesticide
3 , industrial material
mordant agent of printing and dyeing, preserv agent
water treatment agent
mineral separation agent
zinc sulfate
two-layer packing, internal packing is PE bag , external packing plastic woven bag, Net Wt. 50kg .
It should ve protected by covers when transportation , avoid rain, moisture, or mixed with acid / alkali matter and color matter
packed in dry and airiness place, no contact with acid and alkali and color matter
|
|
|
|
|
|
