- Overview
- Product Description
- Detailed Photos
- Product Parameters
- Application
- Packaging & Shipping
- Company Profile
- FAQ
Basic Info.
Product Description
Zinc sulfate is colorless or white rhombic crystal or powder at room temperature. It is astringent and 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 become a white powder in dry air. There are many kinds of hydrates: zinc sulfate heptahydrate is a stable hydrate in the range of 0-39ºC, zinc sulfate hexahydrate at 39-60ºC and zinc sulfate monohydrate at 60-100ºC. When heated to 280°C, various hydrates completely lose their crystal water, decompose into zinc sulfate at 680°C, decompose further above 750°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 |
1.Feed additives, trace elements for animals;
2.Agricultural fertilizers & fungicides;
3.Electroplating & water treatment;
4.Non-ferrous metal flotation reagents;
5.Manufacture other zinc salts.
25kg/ 40kg /750kg /1000kg ,also can be according to customer requirements
1. Are you a trade company or factory?
Yes, we are factory which has almost 20 years experience.
2. How do you control the quality?
We have professional QC and keep every order's sample for two years, thus also support the third party test like SGS,BV etc.
3. What's your payment terms?
T/T or L/C AT SIGHT for first cooperation.
4. What is your unit packing weight?
25kg or 50kg with PE bag or as your request
5.Can i get sample before order?
Yes, of course,we will send you free sample within 3 days.
6. Can I pack according to my logo?
Surely, you just need to provide packaging design.