Basic Info.
Product Description
1.Chemical Name: Zinc Sulfate
2.Molecular Formula : ZnSO4·H2O, ZnSO4·7H2O
3.Molecular Weight: Monohydrate: 179.48; Heptahydrate: 287.54
4.CAS: Monohydrate:7446-19-7; Heptahydrate:7446-20-0
5.Character: It is colorless transparent prism or spicule or granular crystalline powder, odorless. Relative density is 1.957. Melting point is 100ºC. It's easily soluble in water and aqueous solution is acidic to litmus. It's slightly soluble in ethanol and glycerin. The monohydrate loses water at temperatures above 238ºC; heptahydrate effloresces in dry air at room temperature.
6.Usage: It is used as nutritional supplement(zinc fortifier) and processing aid. It's used in milk product, infant food, liquid and milk drinks, grain and its' products, table salt, soft drinks, maternal formula and coco powder and other flavor nutritional solid drinks.
7.Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8.Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
| Specification | GB25579-2010 | FCC VII | |
| Content w/% | ZnSO4·H2O | 99.0-100.5 | 98.0-100.5 |
| ZnSO4·7H2O | 99.0-108.7 | 99.0-108.7 | |
| As ,w/% ≤ | 0.0003 | ---- | |
| Alkalis and Alkaline Earths,w% ≤ | 0.50 | 0.5 | |
| Acidity, w/% ≤ | Pass The Test | Pass The Test | |
| Se, w/% ≤ | 0.003 | 0.003 | |
| Hg, w/% ≤ | 0.0001 | 0.0005 | |
| Pb, w/% ≤ | 0.0004 | 0.0004 | |
| Cd, w/% ≤ | 0.0002 | 0.0002 | |
FAQ
Q1.What's the payment terms?
We could accept T/T, L/C, DP payment terms.
Q2.How about the different index of products in same application?
Specifications can be customized according to your application.
Q3.How about the samples of products?
We can provide free samples under 2Kg(not including freight charge).
Q4.How about the price of products?
Our products are chemical synthesis got from underground brine, which is available for a variety of usage. Our products are high purity with good quality, and the price is based on different specification and quantity.
Q5.What's the shelf life for the cargoes?
Our product's shelf life is 2 years, which is based on dry and ventilated storage.
Q6.What's the package of the cargoes?
20kg/25kg woven bags, within plastic bags, or as customized.
Q7.What's the delivery time?
We usually deliver the cargoes within 10~20 days after receiving customer's payment or original L/C.
Q8.Which documents can we supply?
Commercial Invoice, Packing List, Certificate of Analysis, Certificate of Origin (FORM E), Bill of Loading, ISO etc.
The documents will be sent by Express within 24 hours against your full payment.
Q9.Why do you choose us?
We accept safe and diversified payment terms.
We supply a price trend to ensure clients know marketing information in time. We will take charge of 100% responsibility for
quality issue. We strive to create value for each customer we serve by meeting their unique needs and providing solutions to solve their problems and achieve their objectives.
