fiber grade zinc sulfate heptahydrate CAS NO.7446-20-0

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 concreting liquid for synthetic fiber and important subsidiary material for synthetic fiber and vinylon.
Characteristic and function

1. High purity, equal crystal and easy soluble.
2. Low content of heavy metal, Fe, Pb and Cd meet with national standard.

Packaging and transportation
Plastic woven bag lined with plastic film bag. Standard net weight: 40kg, 50kg or as customer’s requirement. Avoid moisture during the transportation and store.
Regular clients
Tangshan Sanyou Jituan Chemical Fibre Co.,Ltd