Product Description
Introduction to Ferrous Sulfate Heptahydrate
Definition:
Ferrous sulfate heptahydrate, with the chemical formula FeSO4·7H2O, is a hydrated form of ferrous sulfate. It is a greenish - blue crystalline solid also known as "green vitriol".
- Physical and Chemical Properties: Appearance: It has a light green, crystalline appearance. Solubility: Highly soluble in water, but insoluble in ethanol. Chemical Reactivity: It can react with strong oxidants, and when heated, it loses water of crystallization.
1. Production Methods:
Chemical Reaction: It can be produced by reacting iron with sulfuric acid. Another method is through the reaction of iron - containing waste materials with H2SO4.
2. Storage Methods:
(1) Store in a cool, dry place, away from direct sunlight.
(2) Keep containers tightly closed to prevent oxidation and moisture absorption.
(3) Avoid storing with oxidizing agents.
3. Market Information: The market demand for ferrous sulfate heptahydrate is mainly driven by its applications in various industries. Its price can fluctuate based on raw material costs and production volume.
4. Downstream Industry Chain:
(1) In the agricultural industry, it is used as a fertilizer additive.
(2) In the water treatment industry, it helps in purifying water.
(3) In the chemical industry, it serves as a raw material for other chemical products.
Detailed Photos

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
1.Agriculture and Horticulture
Soil Amendment: Ferrous sulfate heptahydrate is widely used to correct iron - deficiency in soils. When added, it helps convert the soil's pH to a more acidic level, which is beneficial for plants that thrive in acidic conditions, such as blueberries and rhododendrons. This chemical improves the availability of iron for plant roots, preventing yellowing of leaves, a condition known as chlorosis.
Fertilizer Additive: As a key micronutrient source, it enriches fertilizers. Plants require iron for essential metabolic processes like photosynthesis and enzyme activation. By incorporating ferrous sulfate heptahydrate into fertilizers, farmers can enhance crop quality and increase yields, ensuring healthier and more robust plant growth.
2.Water Treatment
Coagulation and Flocculation: In water purification, it acts as a coagulant - flocculant. When introduced into water, it reacts with impurities and suspended particles, causing them to clump together. This process makes it easier to remove contaminants, including organic matter, colloids, and some heavy metals, resulting in clearer and cleaner water suitable for industrial or domestic use.
Oxidation of Reducing Substances: Ferrous sulfate heptahydrate can also oxidize reducing substances in water, such as hydrogen sulfide, which is responsible for the unpleasant "rotten egg" smell. By oxidizing these substances, it improves water odor and quality.
3.Chemical Industry
Pigment Production: It serves as a crucial raw material for manufacturing iron - based pigments. For instance, iron oxide pigments, which are produced using ferrous sulfate heptahydrate, are used extensively in paints, coatings, and inks. These pigments provide various colors, from reds and yellows to browns, and offer excellent light - fastness and durability.
Catalyst and Intermediate: In some chemical reactions, ferrous sulfate heptahydrate functions as a catalyst or intermediate. It can participate in redox reactions, facilitating the synthesis of other chemicals and materials in industrial processes.
4.Animal Husbandry
Animal Feed Supplement: In animal nutrition, it is added to feed as an iron source. Iron is essential for livestock, aiding in the formation of hemoglobin in red blood cells, which is responsible for oxygen transport. Adequate iron intake helps prevent anemia in animals, ensuring their growth, development, and overall well - being.
Feed Preservation: Ferrous sulfate heptahydrate can also contribute to the preservation of animal feed by inhibiting the growth of certain microorganisms, thus extending the shelf - life of the feed.
5.Textile and Leather Industries
Dyeing Aid: In the textile industry, it is used as a mordant in the dyeing process. A mordant helps dyes bind to fibers more effectively, resulting in brighter, more color - fast, and long - lasting colors on fabrics.
Leather Tanning: In leather production, ferrous sulfate heptahydrate can be involved in the tanning process. It helps to stabilize the leather structure, making it more durable and resistant to decay and wear.
Packaging & Shipping
Packaging:
25kg bag/50kg bag---27tons/1FCL without pallet
1000kg bag---25tons/1FCL without pallet
Shipping:
in container in bulk carrier
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!
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FAQ
Q1: Is this product safe to handle?
A: Yes, it is generally considered safe and non-toxic under normal handling conditions. However, we recommend wearing gloves and a mask to avoid prolonged skin or inhalation exposure, especially in large-scale use.
Q2: What is the shelf life of this product?
A: The shelf life is 2 years when stored in a cool, dry, and well-ventilated area. It should be kept away from moisture to prevent caking or decomposition.
Q3: What packaging options are available?
A: Standard packaging includes 25kg or 50kg plastic woven bags with inner liners. We also offer jumbo bags and customized bag marks according to your requirements.
Q4: Can you provide documents such as COA, MSDS, or TDS?
A: Absolutely. We can provide Certificate of Analysis (COA), Material Safety Data Sheet (MSDS), Technical Data Sheet (TDS), and other documents as needed for customs or technical review.
Q5: What are your payment terms?
A: We accept T/T (30% deposit, 70% before shipment), L/C, and other negotiable terms based on order size and customer relationship.
Q6: What is your lead time and delivery port?
A: Normally, delivery time is within 10-15 working days after deposit. Our main loading ports are Qingdao, Shanghai, and Tianjin, China.
