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
Usually used as key component of oral liquid, tablets, eyedrops, essential components of many new and special medicine.
Characteristic and function

1. High purity and useful for medicine.
2. Easy to dissolve in water and to produce medicine.
3. Have little heavy metal. Lead(pb)、cadmium、chromium、arsenic(As)、mercury etc infaust elements fit with China pharmacopoeia、UK pharmacopoeia and USA pharmacyopoeia.

Packaging and transportation
Plastic sack inner and reschel bag outside, net weight 25Kg, 40Kg, 50Kg, and change package as order.
Protect from damp when transport and stock.