Items

ZnSO4.H2O Granular

ZnSO4.7H2O

ZnSO4.H2O Powder

Zn %min

33

30

25

21.5

21.5

22

35

35.5

Pb ppm max

10

10

10

10

10

10

10

10

As ppm max

5

5

5

5

5

5

5

5

Cd ppm max

10

10

10

10

10

10

10

10

Size

1-2mm

2-5mm

1-2mm

2-5mm

1-2mm

2-5mm

1-2mm

2-5mm

Package

25KG、50KG、500kg、1000KG、1250kg bag and OEM color bag

Properties

White crystals, convergent, in dry air will chalking. Heated to 0 ℃will lost part of crystalline water, to 100℃will lost six molecules of water of crystallization, and lost seven molecules of water of crystallization at 280℃, at 767℃will be decomposed into ZnO and SO3. Soluble in water, slightly soluble in ethanol and glycerin, it needs to keep sealed.

Usage

Zinc sulfate is used as trace element fertilizer to prevent crops from Zn deficiency and increase crop yields. Now more and more farmers apply micronutrient fertilizers such as zinc sulfate.It can be used as feed additive to supply trace element, prevent and cure some diseases because of zinc deficiency and prevent premature death. It also can increase appetite, control blood disorders and bone disease.In industry field, zinc sulfate works as coagulator for man made fibril, and mordant in dyeing and printing industry;