Product Description
Magnesium sulfate heptahydrate, represented by the chemical formula MgSO4·7H2O, is an odorless crystalline compound that appears as white or colorless needle-like or oblique columnar crystals. During thermal decomposition, this hydrated salt undergoes a gradual, stage-by-stage loss of its crystalline water molecules, eventually transforming into anhydrous magnesium sulfate. Thanks to its adaptable properties, the compound finds extensive application in various industrial fields, including fertilizer production, leather processing, printing and dyeing, catalyst manufacturing, papermaking, plastics, ceramics, pigments, matches, explosives, and fireproof materials.
In the domain of textile dyeing, magnesium sulfate heptahydrate plays a pivotal role in the treatment of delicate cotton and silk fabrics. It serves a dual purpose: functioning as a weighting agent to enhance the density and texture of cotton fibers, while also acting as a filler in kapok products to improve their structural integrity and visual appeal. In the medical field, this compound is highly regarded for its purgative properties, often used as a purgative salt to assist in intestinal cleansing and address specific gastrointestinal disorders under the guidance of medical professionals.
The unique combination of its physical characteristics-such as water solubility and distinct crystalline structure-and chemical behaviors-including thermal decomposition rates-establishes magnesium sulfate heptahydrate as an indispensable material in both industrial manufacturing and specialized medical applications. Its ability to fulfill multiple functions across diverse sectors underscores its significance as a versatile chemical compound in contemporary industry and healthcare.
Product Parameters
| Item |
Specification |
| Purity %min |
99 |
| MgSO4 |
48.59 |
| MgO %min |
16.24 |
| Mg %min |
9.88 |
| PH (5% Solution) |
5.0-9.2 |
| Iron(Fe) % max |
0.0015 |
| Cl %max |
0.014 |
| Heavy metal (as Pb)%max |
0.0006 |
| (As)%max |
0.0002 |
Application
Catalysts and Intermediates: Used to prepare magnesium compounds such as magnesium oxide and magnesium hydroxide, or as a desiccant in organic synthesis (utilizing its water absorption properties).
Plastics and Rubbers: Added as a flame retardant to PVC and epoxy resins to improve the fire resistance of materials; or used as a filler to increase the hardness of products (such as artificial leather and shoe soles).
Ceramics and Pigments: Used to prepare high-temperature resistant ceramic glazes, or as a pigment carrier (such as a filler in the production of white pigments).
As a pulp filler, it improves the whiteness and tear strength of paper and is commonly used in the production of printing paper and packaging paper;
In cardboard processing, it is an ingredient of the waterproofing agent, enhancing water resistance in humid environments.
Textile Dyeing Auxiliaries: When dyeing cotton and silk, it serves as a "weighting agent". It improves the handfeel of fabrics by adsorbing dyes. For example, it fixes pigments in silk printing to prevent fading. In kapok products, it is used as a filler to increase the material density and warmth retention.
In kapok products, it is used as a filler to increase the material density and warmth retention.
Leather Tanning: It adjusts the pH value of the tanning solution, aids the penetration of vegetable tannins, and improves the softness of leather. It is especially suitable for high - end vegetable - tanned leather (such as leather goods and shoe materials).
Packaging & Shipping
1. Temperature and Humidity Control
Store in cool, arid conditions with temperatures maintained below 30°C and relative humidity ≤60% to prevent moisture absorption or efflorescence.
Avoid zones with fluctuating temperatures, as exposure to heat exceeding 67.5°C may induce autodissolution of the compound in its crystalline water.
2. Airtight Packaging Specifications
Utilize sealed containers (e.g., PE-lined woven sacks or hermetic steel drums) to shield the material from ambient moisture, which can cause caking or dehydration-related instability.
3. Ventilation and Palletization Protocols
Ensure storage areas have adequate ventilation to disperse moisture vapor, particularly in industrial warehouse environments.
Elevate containers on pallets with at least 15 cm ground clearance to promote unobstructed airflow and prevent direct contact with damp surfaces.
4. Chemical Compatibility Guidelines
Isolate from acidic, alkaline, or volatile chemicals to avoid degradation due to reactive interactions.
Isolate from strong oxidizers and other incompatible substances in accordance with hazardous material storage protocols.
5. Light and Heat Protection Measures
Store in cool areas or use opaque coverings to avoid direct sunlight, as long - term exposure will accelerate the thermal decomposition of the compound.
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!
Exhibitions and Customers
FAQ
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;
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