Molecular formula  ZnSO₄ 7H₂O
Molecular weight    287.56
Physical and chemical property
White or slight-yellow crystal, loose and no agglomeration, easy soluble in water and slightly dissolvable in alcohol and glycerol, insoluble in liquid ammonia and ketone, tending to lose water molecules of hydration in dry air and become white powder appearance. When the temperature is 280℃, it will become no water substance and lose all crystal water. When the temperature is above 500℃, it will decompose.
Relatively density: 1.975
Melting point: 100℃
Use
As a kind of microelement, it is widely used in rice, wheat, corn, vegetable and fruit. It is also used by mixing with other multiplex fertilizer and prevent fruit tree against diseases.
Characteristic and function

1. Easy solubie in water, quick absorbable for the plant.
2. Low content of heavy metal, Fe、Cd、Cr、As meet with China Agricaltured Standard.

Packaging and transportation
Plastic woven bag lined with plastic film bag. Standard net weight: 25kg or as customer’s requirement. Avoid moisture during transportation and store.