ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว Zinc sulfate is colorless or white rhomboid crystal or powder at room temperature, soluble in water. The aqueous solution is acidic and slightly soluble in ethanol and glycerol. Pure zinc sulfate will not turn yellow in the air for a long time, and will turn into a white powder in dry air. There are many kinds of hydrates: zinc sulfate heptahydrate is a stable hydrate in the range of 0 to 39 ° C, zinc sulfate hexahydrate in the range of 39 to 60 ° C, and zinc sulfate monohydrate in the range of 60 to 100 ° C.
| Test it | Standard |
| Identification | Passes test |
| Assay(ZnSO4·H2O) % | 98.0-100.5 |
| Acidity | Passes test |
| Alkalies and alkaline earths % | ≤0.50 |
| Cd mg/kg | ≤2.0 |
| Lead mg/kg | ≤4.0 |
| Hg mg/kg | ≤5.0 |
| Se % | ≤0.003 |
25kg/bag , PP Bag or According to customer's requirements.
Our company can provide a variety of mineral treatment agents, including xanthate series, dithiophosphate series, blowing agents, sulfur and nitrogen series, esters and various regulators. We are in strict accordance with the ISO9001 quality system standards for production, products with stable quality, cost-effective advantages. Over the years, our products have been sold to a number of mining enterprises in more than 20 countries and regions, and have been praised by customers.
Q: Are you a manufacturer or a trading company?
A: We are a manufacturer located in Hebei Province.
Can I get some samples before I place an order?
A: Yes, we can provide free samples, but you will pay the freight.
Q: How long will it take to get a sample?
A: 7-10 days for general products, 30-40 days for customized products. Depends on production arrangements.
Q: What documents do you provide?
A: Usually we provide commercial invoice, packing list, bill of lading, COA, health certificate. If your market has any special requirements, please let us know.
ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
