Chemical Name: Zinc sulfate heptahydrate
CAS No.: 7446-20-0
Molecular Formula: H14O11SZn
Molecular weight:287.56
Appearance: Prismatic Crystallization of Colorless Oblique Crystal System
Assay: 99%min
| Name of index |
FCCVII |
Index |
| Content % |
99.0-108.7 |
99.48 |
| Alkali metal≤% |
0.5 |
0.19 |
| PH Value |
normal |
normal |
| Cd ≤% |
0.0002 |
<0.0002 |
| Pb ≤% |
0.0004 |
<0.0002 |
| Hg ≤% |
0.0005 |
<0.0005 |
| Se ≤% |
0.003 |
0.002 |
Hebei Weibang Biotechnology Co., Ltd. is a professional chemical products company that is widely praised for providing high-quality, cost-effective chemical raw materials.
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Q1: Quality Assurance
A1: Weibang strictly controls the quality of the products, and all products comply with relevant national standards to ensure that it provides customers with the highest quality products.
Q2:Export Experience
A2:Weibang has more than 10 years of chemical product export experience,We has successfully entered mor than 100 countryies,including German,Russia,South Korea,Philippines and So on.
Q3:Lead-time and Freight
A3: Only need 1-3 workdays for most goods in stock. Delivery time is around 3-7 business days by DHL,FedEx,UPS.Experienced freight forwarders arrange shipment for us, with low price and first-class service.
Q4:Terms of Payment
A4: T/T, 30% deposit will be required before the mass production and 70% balance which will be paid before sending the order.
Q5:Sample order
A5:We accept sample order.Free sample can be supplied if need.
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