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Magnesium Sulfate Heptahydrate CAS 10034-99-8

Molecular Formula: Mg.O4S.7H2O

Formula Weight: 246.47

ZSpharmac: Magnesium Sulfate Heptahydrate Raw Material Supplier

Product Name: Magnesium Sulfate Heptahydrate
CAS No: 10034-99-8
Purity: 99%

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Basic Info

Product Name:Magnesium Sulfate Heptahydrate
Other Names:Magnesium Sulfate
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Solid
EINECS No.:600-073-4
Storage:Store at +5°C to +30°C.
Provide:Magnesium Sulfate Heptahydrate MSDS;
Magnesium Sulfate Heptahydrate COA

What is Magnesium Sulfate Heptahydrate?

Magnesium sulfate heptahydrate (molecular formula MgSO4 · 7H2O), additionally called sulfur bitter, bitter salt, Epsom salt, Epsom salt, is a white or anemic needle-shaped or oblique columnar crystal, odorless, classy in addition to instead bitter, molecular weight: 246.47 The certain gravity is 1.68, conveniently soluble in water, instead soluble in ethanol in addition to additionally glycerol, and likewise soluble in its really very own crystal water at 67.5 ° C. It breaks down when heated up in addition to sheds 4 molecules of crystal water at 70 in addition to 80 ° C. At 200 ℃, it drops all crystal water as well as also becomes anhydrous. It pleasantly weathers right into powder in the air (drying). When heated, it progressively drops crystal water in addition to also end up being anhydrous magnesium sulfate. This item does not consist of any type of sort of unsafe contaminations.
As a result of the reality that magnesium sulfate heptahydrate is not comfortably soluble, it is simpler to consider than anhydrous magnesium sulfate, which aids with quantifiable control in industry. Primarily used in the manufacture of plant foods, sun tanning, printing in addition to similarly tinting, chauffeurs, papermaking, plastics, porcelain, pigments, fits, dynamites as well as additionally fire resistant products.It can be made use of for printing in addition to also tinting slim cotton product together with silk, as a weighting agent for cotton silk and as a filler for kapok products; it is in improvement made use of as Epsom salt in medicine.

Magnesium Sulfate Heptahydrate Property

Melting point 1124°C
density 2.66
vapor density <0.01 (vs air)
vapor pressure <0.1 mm Hg ( 20 °C)
storage temp. Store at +5°C to +30°C.
solubility H2O: 1 M at 20 °C, clear, colorless
form Solid
Specific Gravity1.68
color White
PH5.0-8.0 (25℃, 50mg/mL in H2O)
Water Solubility Soluble in in water and acid. Slightly soluble in alcohol and glycerol.


Various Effects of Magnesium Sulfate Heptahydrate

1. In farming, magnesium sulfate heptahydrate is a dual-nutrient high-grade fertilizer (consisting of Mg as well as S). Sulfur and additionally magnesium are both tool aspects of crops. They are the 5th and 6th major nutrients of crops. They can not only It can boost the return of fruit trees, potatoes, grapes, fields, soybeans, peanuts, veggies, rice, wheat, rye, cigarette, sugar strolling stick, sugar beetroots, citrus and different other plants, along with can additionally enhance the taste of fruits; however, magnesium sulfate heptahydrate plant food is extensively utilized in farming. It is not a good idea to make use of excessive. If fluid plant food is utilized, the concentration normally does not exceed 0.5 g/L; if solid fertilizer is made use of, the magnesium sulfate mixed in 1500kg of farmyard manure per acre has to do with 50kg. If the amount of magnesium sulfate heptahydrate is also big, It will influence the typical development of plants as well as likewise fruit quality.

2. Magnesium sulfate heptahydrate is made use of as a magnesium supplement, additive, as well as activator in agricultural animals feed handling. It plays an important function in the item metabolic procedure and likewise neurological function of animals as well as additionally chicken, making the animals along with fowl healthy and balanced as well as additionally strong.

Magnesium is a necessary think about the bone structure procedure along with tightening in livestock in addition to poultry. It is an activator of different enzymes in livestock as well as also poultry. It plays a remarkably essential duty in the product metabolic process and also neurological function of livestock as well as fowl. If the pets as well as fowl body Magnesium shortage can bring about product metabolic process as well as likewise neurological disorder, supply discrepancy, influence the advancement and likewise development of animals as well as also chicken, and even lead to death. Including an appropriate amount of magnesium sulfate to feed and additionally consuming alcohol water can satisfy the sebum growth needs of milk items cows in addition to substantially boost the high quality as well as quantity of milk created by milk items cows.

The magnesium ions in magnesium sulfate heptahydrate have an antagonistic effect on calcium ions. It is a physiological calcium antagonist. It has the impacts of soothing bronchial asthma, removing mucosal edema as well as additionally bronchospasm, dilating capillary, anti-arrhythmia in addition to platelet aggregation. It is presently mostly utilized clinically. The therapy of volumetric diarrhea, choleretic, soothing, anticonvulsant in addition to different other ailment, this is the role of magnesium sulfate heptahydrate in vet medication.

The tank farming result of magnesium sulfate heptahydrate in the farming field is beneficial to the growth of favorable bacteria and making water products a whole lot much more plentiful.

Magnesium sulfate heptahydrate can be made use of to prevent as well as handle sessile ciliate diseases in aquaculture pet dogs such as crabs as well as likewise shrimps. On top of that, zinc sulfate includes a range of mineral components, which can properly control the inner and also exterior osmotic pressure of shrimp along with crab cells in the water body. It can effectively hinder the stress reaction of shrimp as well as crabs when the salinity of the water body declines, and it can additionally add in skin combining. Make the body surface area of shrimps and also crabs clear, thereby enhancing the market rate of industrial shrimps along with crabs.

1. Magnesium sulfate heptahydrate is used in chemical sector as a resources for making other magnesium salts such as magnesium stearate, magnesium hydrogen phosphate, magnesium silicate, magnesium oxide, in addition to other sulfates such as potassium sulfate along with salt sulfate.

2. In the environmental management market, magnesium sulfate heptahydrate is used straight as a sewer treatment agent or as a basic material for sewage system treatment representatives. It is used in industrial sewage treatment to condense and also resolve waste fluid sewer to make certain that it can satisfy the sewage system discharge criteria.
3. In the framework products market, magnesium sulfate heptahydrate reacts with hefty light charred powder (magnesium oxide) after being dissolved in water to develop magnesium oxysulfate concrete. This concrete has outstanding thermal insulation, fire resistance, sturdiness as well as additionally environmental management. It is taken advantage of in the production of fire-resistant boards, outside wall surface insulation boards, door core boards, magnesium sulfate boards, etc 4. In the building industry, magnesium sulfate heptahydrate is util

ized as a coagulant for concrete.

5. In the commercial production of polymer products such as abdominal muscle along with EPS, magnesium sulfate heptahydrate is used as a coagulant for polymer solutions.

6. In the industrial production of man-made fibers, magnesium sulfate heptahydrate is a component of the spinning bath as well as an essential auxiliary product for viscose fiber as well as also vinylon fiber.

7. In pulp manufacturing in the paper market, magnesium sulfate heptahydrate is utilized to increase the selectivity of oxygen lightening to eliminate lignin, boost cellulose top quality, and also conserve product use.

8. Magnesium sulfate heptahydrate is made use of as a dealing with aid along with filler in the natural leather market. It can make natural leather softer, promote the bonding of tanning representatives in addition to natural leather, enhance the top quality of leather, in addition to boost the cozy resistance of natural leather.

9. In the printing and also coloring sector, magnesium sulfate heptahydrate can be used as material coloring rep, anti-alkali rep, weighting agent, magnesium coloring rep, used in the production of printing and additionally tinting slim cotton towel and silk, and also in the chemical fiber in addition to material markets. Dyeing rep as well as likewise reductase ensure consistent dyeing with a pH worth in between 6 and also 7; it can in addition be used as filler for kapok products and additionally in the production of rayon.

10. In the electroplating sector, it is utilized as a conductive salt: consisting of magnesium sulfate heptahydrate to the nickel layering service can make the plating solution have much better conductive residential properties as well as make the layer white as well as also soft; it can also be taken advantage of as a light weight light weight aluminum smelting additive to make Aluminum area tinted.

11. In the microbial market, it is utilized as a culture tool part, an additive for brewing, to supplement magnesium in brewing water, and additionally as a nutrient source throughout fermentation.

12. In light market, it is made use of as a stabilizer for calcium hydrogen phosphate in the manufacturing of fresh yeast, monosodium glutamate, drinks, mineral water, wellness and also health salt, sea crystal, showering health as well as health, “Bolton” beer along with tooth paste manufacturing.

Magnesium Sulfate Heptahydrate Preparation

Method One,

Include 202kg of bitter dirt (consisting of greater than 85% magnesium oxide) to the neutralization kettle, after that add a certain amount of faucet water and mix for a while, after that start adding 417kg of sulfuric acid dropwise, initially swiftly and then gradually, up until the shade adjustments from natural white to red. After the trickling is completed, react for 0.5 h. Pour the neutralized liquid into a blade suction filter for purification, pour the filtrate right into a crystallizer, readjust the pH worth to 4 with sulfuric acid, add ideal magnesium sulfate seed crystals to 30 ° C, centrifuge, and also completely dry at 50 to 60 ° C to get End product. The reaction formula is as complies with:

Method Two,

A method for preparing magnesium sulfate heptahydrate. The approach consists of the steps: A. Mix sodium sulfate, magnesium chloride and also fresh water in a weight proportion of 1: (3 ~ 6): (1.5 ~ 3.5) and decompose them. Makeover reaction to obtain slurry I; where, the sodium sulfate is sodium sulfate or mirabilite, and also the magnesium chloride is hydrochlorite (MgCl2 · 6H2O) or old salt water (magnesium chloride saturated solution); B. Convert the slurry is kept as well as settled, and afterwards solid-liquid splitting up is executed to acquire the fluid phase mother liquor; C. The mommy alcohol is cooled to 10-15 ° C for low-temperature chilly formation, and after that solid-liquid splitting up is carried out to obtain solid stage crude sulfuric acid heptahydrate. Magnesium is utilized to acquire fluid phase mommy alcohol II; D. The crude magnesium sulfate heptahydrate, mommy liquor II and fresh water are blended and also washed according to a weight proportion of 1: (0.2 ~ 0.6): (0.2 ~ 0.6) to obtain the product Slurry II: do solid-liquid separation of the slurry II to obtain a strong phase damp product of polished magnesium sulfate heptahydrate; E. completely dry the wet product of polished magnesium sulfate heptahydrate to obtain the damp item of magnesium sulfate heptahydrate.

Method Three

The prep work approach of magnesium sulfate heptahydrate, consisting of the following steps: A. Glauber’s salt and also hydrochlorite are mixed in a mass proportion of 1:1.5 to 1:8, include water to liquify, as well as manage the water material of the system to 60% ~ 80%, obtain the initial option; B. Filter as well as eliminate the insoluble matter in the initial remedy; C. Freeze the filtered very first option, regulate the freezing temperature to? 30 ℃ ~ 5 ℃, and also the freezing time is 6h ~ 72h. Crystallize and also precipitate magnesium sulfate heptahydrate, and get a 2nd service; D. Wash the magnesium sulfate heptahydrate with water. The creation is an eco-friendly new procedure with reduced raw material expense, basic procedure and also hassle-free operation. It does not require recrystallization as well as including organic matter, and also the ready magnesium sulfate heptahydrate has high purity.

About Products:
If you need the cosmetic raw material Magnesium Sulfate Heptahydrate, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced manufacturer and supplier of Magnesium Sulfate Heptahydrate, our company, ZSpharmac will provide Magnesium Sulfate Heptahydrate raw materials to customers around the world for a long time.
Over the years, the company has adhered to the spirit of “integrity management, strict quality control, and customer first” and has won unanimous praise from customers at home and abroad.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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