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magnesium sulphate anhydrous powder

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CAS No.:

7487-88-9

Content:

98%

Port:

qingdao

Packaging:

25kg/ 50kg /bulk bag

Price valid (until):

2026-01-11

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Anju new materials co.,ltd

Company Type:

Trader

Location:

China

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Main Products:

Chemical products

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Product Description
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Inquiry History

Description

Anhydrous Magnesium Sulfate is an important inorganic compound, and the following is a detailed introduction to it:

Basic Information: Its chemical formula is MgSO₄, molecular weight is 120.37, and CAS number is 7487-88-9. It is a high-purity, highly hygroscopic inorganic sulfate.

Physical and Chemical Properties: It appears as white powder, granules or crystalline solid at room temperature, odorless and tasteless with good fluidity; the pure product is colorless rhombic crystal, while industrial-grade products may be off-white due to trace impurities. Its density is 2.66g/cm³ (20℃), melting point is 1124℃ (decomposition), and there is no clear data on boiling point. It is extremely soluble in water, with a solubility of about 26.9g/100mL at 20℃, and absorbs heat when dissolved; it is soluble in glycerol and ethanol, slightly soluble in acetone, and insoluble in organic solvents such as ether and benzene. It is stable under normal temperature and pressure, not easy to oxidize or decompose, but decomposes at high temperature (>1124℃) to produce toxic sulfur trioxide gas.

Preparation Process: The mainstream industrial method is the dehydration of magnesium sulfate heptahydrate. The hot air drying method involves feeding magnesium sulfate heptahydrate crystals into a dryer and dehydrating them with hot air at 120-180℃ to obtain crude anhydrous magnesium sulfate; the vacuum drying method conducts low-temperature dehydration at 80-100℃ under vacuum conditions (pressure 0.05-0.08MPa), resulting in higher product purity, which is suitable for pharmaceutical and food-grade applications. Crude products are processed through crushing, screening, magnetic separation, etc., to remove mechanical impurities, and can be further purified by recrystallization, ion exchange, etc.

Main Uses:

Chemical Industry: Due to its strong hygroscopicity, it can be used as a desiccant for organic synthesis, chemical raw materials and gases, especially suitable for water-sensitive organic reaction systems; it can also serve as a carrier for chemical catalysts to improve the dispersion and reaction activity of catalysts, and is a raw material for producing chemical products such as magnesium oxide, magnesium sulfate whiskers and flame retardants.

Pharmaceutical Field: It can be used as a filler and disintegrant in pharmaceutical preparations; externally, it acts as an astringent and anti-inflammatory agent; orally, it serves as a laxative for treating constipation or relieving hypertension symptoms in preeclampsia; when diluted, it can be used for wound disinfection and vaginal irrigation.

Food Industry: It is used as a food desiccant and nutrient fortifier, as a coagulant in the production of bean products and dairy products, and for water quality adjustment in beer brewing.

Agricultural Field: It can be used as water-soluble magnesium fertilizer and sulfur fertilizer to quickly supplement magnesium and sulfur elements needed by crops; it can also be added to livestock and poultry feed to supplement magnesium required for animal growth.

Specification Standards: Industrial-grade products comply with HG/T 2680-2017 standard, with purity ≥98.0% (excellent grade ≥99.0%); pharmaceutical-grade products comply with the Chinese Pharmacopoeia standard, with purity ≥99.5%; food-grade products comply with GB 29207-2012 standard, with purity ≥99.0%; reagent-grade products comply with GB/T 671-2011 standard, with purity ≥99.5%.

Product Detail

Items	Specifications

Basic Info

Product Name:

Epsom Salt

Other Name:

Sulfuric acid magnesium salt (1:1);Magnesium sulfate (1:1);Magnesium sulfate;Sulfuric acid magnesium salt;Epsom salts;Epsom salt;Magnesium sulphate;Tomix OT;OT-S;OT-S (drying agent);Mg-OK;MN 00;MG-OK 100;Sulfuric acid,magnesium salt (1:1);MN 30;Arrosalt 2327;SN 00;M-HOS;Magnesii sulfas;TC-P;MG 3K;Epso Top;WS 1S;NP-YW 1;USN 00;MN 70;139939-75-6;849607-35-8

CAS No.:

7487-88-9

Molecular Formula:

H2O4S.Mg

InChIKeys:

InChIKey=ZGBSOTLWHZQNLH-UHFFFAOYSA-N

Molecular Weight:

120.36800

Exact Mass:

119.93700

EC Number:

606-949-2

UNII:

ML30MJ2U7I

ICSC Number:

1197

DSSTox ID:

DTXSID6042105

Color/Form:

Colorless crystalline solid|Orthorhombic crystals|Opaque powder

ATC Code:

A - Alimentary tract and metabolism|B - Blood and blood forming organs|D - Dermatologicals|V - Various

HScode:

2833210000

Categories:

Fertilizers

Characteristics

PSA:

88.64000

XLogP3:

-0.91

Appearance:

White crystalline powder

Density:

2.66 g/cm³

Melting Point:

1124 °C (decomp)

Boiling Point:

330ºC at 760 mmHg

Refractive Index:

Index of refraction: 1.56

Water Solubility:

Solubility in water, g/100ml at 20°C: 30 (good)

Storage Conditions:

KEEP WELL CLOSED. /HEPTAHYDRATE/

Vapor Pressure:

<0.1 mm Hg ( 20 °C)

Vapor Density:

<0.01 (vs air)

Odor:

Odorless

Taste:

Saline, bitter taste

Experimental Properties:

REACTS WITH CALCIUM HYDROXIDE TO FORM MAGNESIUM HYDROXIDE|COLORLESS MONOCLINIC PRISMS; INDEX OF REFRACTION 1.523, 1.535 & 1.586; DENSITY 2.445; SOL: 68.4 G/100 CC WATER @ 100 °C /MONOHYDRATE/|Crystals; odorless /Trihydrate/|The drug reacts with arsenates, phosphates, and tartrates, precipitating the corresponding magnesium salts. /Magnesium sulfate injection/|Lead, barium, strontium, and calcium react with magnesium sulfate resulting in precipitation of the respective sulfates.|COLORLESS, RHOMBIC OR MONOCLINIC CRYSTALS /HEPTAHYDRATE/|For more Other Experimental Properties (Complete) data for MAGNESIUM SULFATE (9 total), please visit the HSDB record page.

See More Epsom Salt Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Dry.KEEP WELL CLOSED. HEPTAHYDRATE

See More Epsom Salt Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Chemical products

Location:
No. 7999 Jiankang East Street, Shangcheng Community, Qingchi Sub-district, Xincheng Sub-district, High-tech Zone, Weifang City, Shandong Province

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
5-10

Year of Establishment:
2025

Inquiry History

50 Inquiries

Country	Product	Purchase Quantity	Date Posted
United Arab Emirates	Magnesium Sulfate	300 MT	Mar 26, 2026
United States	Magnesium Sulfate	10 MT	Apr 30, 2026
India	MAGNESIUM SULPHATE	50.00 KG	Feb 25, 2026
Pakistan	Magnasium Sulphate	4 20' Fcl	Jan 16, 2026
India	Magnesium Sulphate	1000 KG	Jan 6, 2026
Pakistan	Magnesium Sulphate	100 MT	Dec 31, 2025
India	Magnesium Sulphate Anhydrous	20.00 MT	Sep 26, 2025
Mexico	Magnesium Sulfate	1200 MT	Sep 11, 2025
Bangladesh	Magnesium sulfate	1.00 20' Fcl	Jul 23, 2025
Bangladesh	Magnesium sulfate	2.00 20' Fcl	Jun 20, 2025
India	MAGNESIUM SULPHATE	50.00 KG	Apr 14, 2025
Poland	Magnesium Sulfate Heptahydrate	480 TON	Apr 10, 2025
Vietnam	Magnesium Sulfate	1 20' Fcl	Mar 22, 2025
Bangladesh	magnesium sulfate	2.00 20' Fcl	Mar 12, 2025
India	Magnesium Sulfate	1.00 MT	Mar 4, 2025
Pakistan	Magnesium sulphate	1.00 20' Fcl	Feb 21, 2025
Nepal	Magnesium Sulphate	25.00 MT	Dec 3, 2024
Bangladesh	Magnesium sulfate	200 MT	Sep 11, 2024
India	Magnesium sulphate	200.00 KG	Aug 19, 2024
India	Magnesium SULPHATE powder	20.00 MT	Jul 22, 2024

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magnesium sulphate anhydrous powder

Product Description

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