Product Description
Product name: Ferrous Sulfate Heptahydrate
Chemical Formula: FeSO4.7H2O
Cas: 7782-63-0
Description: Ferrous sulfate has the chemical formula of FeSO4. Its frequently encountered hydrate form is FeSO4·7H2O, which is commonly referred to as green vitriol. Visually, it presents as a light-blue-green monoclinic crystal. When exposed to dry air, it undergoes efflorescence. In an environment with moist air, it is highly prone to oxidation. As a result, a brown-yellow basic ferric sulfate is generated on its surface. Ferrous sulfate is readily soluble in water, and the resulting aqueous solution appears light green and exhibits a slightly acidic nature.
Product Parameters
TEST ITEMS |
TEST RESULT |
ASSAY (FeSO4·7H2O) |
≥98.03% |
FERROUS (Fe) |
≥19.2% |
TITANIUM DIOXIDE |
≤0.25% |
FREE ACID |
≤0.3% |
As |
≤0.0003% |
Pb |
≤0.0002% |
Cd |
≤0.0004% |
FORM |
LIGHT GREEN |
CONCLUSION
|
QUALIFIED |
Application
During the production of pigments, ferrous sulfate engages in a sequence of chemical reactions including oxidation and hydrolysis, ultimately resulting in the formation of corresponding iron oxide pigments. These iron - based pigments possess excellent coloring strength, hiding power, and weather resistance. Consequently, they are extensively applied in industries like architectural coatings, automotive coatings, plastics, and rubber to color products.
Industrial - grade ferrous sulfate is of great significance in water treatment. Once it is dissolved in water, hydrolysis occurs to produce a ferrous hydroxide colloid, which has remarkable adsorption capabilities. Take the treatment of natural water or industrial wastewater with sediment and suspended particles as an example. The ferrous hydroxide colloid can adsorb the suspended impurities in the water, causing them to aggregate and settle. In this way, the goal of purifying the water quality is attained.
In the printing and dyeing industry, ferrous sulfate is employed as a mordant. It has the ability to form a combination with dye molecules, facilitating the better adhesion of dyes to fabric fibers. This action enhances the dyeing effect, ensuring that the dyeing is more stable and even. For instance, during the dyeing process of cotton fabrics, pre-soaking the cotton fabrics in a ferrous sulfate solution before proceeding with the actual dyeing step can effectively increase the dye absorption rate and the color fastness of the fabrics.
Packaging & Shipping
Packing: Package in 25/50/1000kg bag, also accpet customer OEM packing.
Storage: Keep in a cool, dry, dark location in a tightly sealed container or cylinder.
Certifications and Reviews


Company Profile
Shandong Jiuchong Chemical Company Limited was founded in 2016, which is located in Weifang City, Shandong Province, China. We have 228 square meters of office space. Now Jiuchong chemical is a large modern international chemical enterprise with more than 28 series. Since our establishment, the company has gradually established and improved a sound supply chain system, quality monitoring system and service system, ensuring products quality and service.
At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc.
Our products are sold well in 288 domestic cities and more than 36 foreign countries. Now the company has won the praise and trust of domestic and foreign customers. Based on stable quality and output, good team service and staff efforts, we will continue to develop domestic and foreign markets.
Jiuchong chemical takes "integrity, innovation and development" as the concept, puts integrity in the priority position in serving customers, and guarantees high quality products and satisfactory cooperation for customers experience. Your satisfaction is our driving force. Quality is the soul of enterprise and that is what we have always done. In the future, Shandong Jiuchong Chemical Company Limited hopes to build a brilliant tomorrow with you!
Q: How long is your delivery time?
A: It usually takes 7-10 days if the goods are in stock, or 10-15 days if the goods are not, depending on the quantity ordered.
Q: Can you support OEM ?
A: Yes, we can make products as your request.
Q: Do you provide samples?
A: Yes, we could offer the sample for free by requests but are not responsible for the freight cost.
Q: What payment terms do you accept?
A: We accept T/T, L/C at sight;