zinc sulphate hepta granular

Product Name          

Zinc sulphate Hepta

Chemical Formula

ZnSO4.7H2O

CAS NUMBER

7446-20-0

Propertities

white or slight yellow crystal or powder . efflorescence to white powder . dehydrated in 280 °C, decompoed in 500 °C . relative density 1.975 . melting point 100 °C.

                                     SPECIFICATIONS

Appearance

white or slight yellow crystal

Main content

                           97% min

Zn

                           18-22% min

As

                           10ppm max

Pb

                           20ppm  max

Water insoluble

                           0.05% max

Cd

                           30ppm max

Hg

                           1ppm max

Usage

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

Package

25kg pp woven bag with inner film bag ;

1000kg pp woven bulk bag with innder film bag ;

Or at client request

Index name

ZnSO₄-H20

ZnSO₄-7H20

Content of Zinc sulphate %min

98

98

Zinc %min

35.7

22.51

Heavy metal(Pb) %max

0.002

0.001

Ferrum(Fe) %max

0.008

0.003

Cadmium(Cd) %max

0.002

0.001

Manganese(Mn) %max

0.01

0.005

Chloride(Cl) %max

0.20

0.20

PH Value(50g/L) min

4.0

3.0

Water insoluble %max

0.02

0.02