Product Description
Chemical Name: Magnesium sulfate
Molecular Formula: MgSO4
CAS:7487-88-9(Anhydrous)
Product Parameters
| Item |
Specification |
| Purity %min |
98 |
| MgSO4 |
98 |
| MgO %min |
32.6 |
| Mg %min |
19.6 |
| PH (5% Solution) |
5.0-9.2 |
| Iron(Fe) % max |
0.0015 |
| Cl %max |
0.014 |
| Heavy metal (as Pb)%max |
0.0008 |
(As)%max
|
0.0002 |
Product Grade:
Feed/Food Grade
Application
Printing and Dyeing Processes
In textile dyeing operations, magnesium sulfate serves dual functions as a dyeing assistant, weighting agent, and mordant. As a dyeing agent, it facilitates the ionic interaction between anionic dyes (e.g., reactive or direct dyes) and cellulosic fibers (cotton, linen), promoting even color absorption. This mechanism minimizes dye aggregation, reducing streaking defects in printed fabrics. As a weighting agent, it adsorbs onto cotton fibers to increase fabric density by 8-12%, enhancing the handfeel of silk-like cotton blends. As a mordant, it buffers the dye bath pH within the optimal range of 6-7, preventing alkali-induced hydrolysis of reactive dyes. This pH stabilization improves dye fixation efficiency by 25%, while simultaneously enhancing color fastness to washing (ISO 105-C06:2010 test results show an improvement from grade 3 to 4-5). In continuous dyeing lines, magnesium sulfate is often incorporated into padding liquors at concentrations of 5-10 g/L to ensure uniform dye uptake across wide-width fabrics (up to 3.2 meters).
Chemical Industry
Drying Agent: Due to its strong hygroscopicity, it is widely used as a drying agent for organic solvents (such as ethanol, ether) and gases (such as carbon dioxide). It can efficiently remove trace amounts of water without reacting with substances.
Catalyst and Additive: In the chemical synthesis of dyes, pharmaceuticals, plastics, etc., it acts as a catalyst or additive to regulate the reaction rate or improve product purity.
Agriculture and Horticulture
Fertilizer: As a source of magnesium and sulfur, it is added to the soil to correct crop nutrient deficiencies, promote plant photosynthesis, and increase the yields of crops such as citrus fruits, cotton, and vegetables.
Dyeing and Textile: As a dyeing auxiliary, it adjusts the pH value of the dye bath, enhances the binding force between the dye and the fiber, and improves the color uniformity of the fabric.
Papermaking and Packaging: It is used as a pulp filler to improve the whiteness and tear resistance of paper, or as a component of a waterproofing agent to enhance the moisture resistance of cardboard.
Flame - Retardant Materials: Added to plastics and rubbers as a flame retardant, it decomposes when heated to release water and inhibit combustion.
Laboratory and Scientific Research
Analytical Reagent: Used for the quantitative analysis of magnesium ions or as a reference substance to standardize other chemical reagents.
Chromatographic Separation: As an adsorbent in column chromatography or thin - layer chromatography to separate and purify organic compounds.In the leather manufacturing sector, magnesium sulfate plays a multifaceted role as a filler and reinforcing agent. By penetrating the collagen fiber network, it enhances the thermal resistance of leather products-enabling them to withstand temperatures up to 120°C without structural degradation. This property is particularly critical for automotive upholstery and footwear soles. Simultaneously, it reinforces the inter-fiber bonding, increasing tensile strength by 15-20% and reducing dimensional shrinkage during wet processing. For premium vegetable-tanned leathers used in luxury goods, magnesium sulfate regulates the tannin penetration depth, ensuring uniform tanning across thick hides (e.g., bovine shoulder skins 3-4 mm in thickness).
Packaging & Shipping
Temperature and Humidity ThresholdsStorage Temperature: It should be controlled within the range of - 5°C to 35°C. Avoid high - temperature environments (>40°C) which can cause an increase in the thermal vibration of the crystal lattice. Although the chemical properties are stable, it may lead to caking (pay special attention when the critical humidity for caking is RH>65%).
Humidity Management: The relative environmental humidity should be ≤60%. It is recommended to configure dehumidification equipment (such as a rotary dehumidifier) to keep the humidity in the storage area stable at 50±5%, preventing deliquescence and the formation of hydrates such as MgSO4.7H2O, which can affect product purity (the magnesium content can decrease by 8 - 12% after deliquescence).
Ventilation and Light ShieldingThe storage area needs to maintain mechanical ventilation (with an air change rate of ≥8 times/hour) to avoid creating a closed and humid environment. At the same time, it is necessary to block ultraviolet light (such as using tarpaulins with a light - shading rate of ≥90%) to prevent the formation of trace oxidative impurities that may be caused by photocatalysis (although the probability is extremely low, strict control is required for high - purity products).
Customer 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!
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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