无水硫酸镁

Description

magnesium sulphate monohydrate · CAS 139939-75-6 · MgSO4. UNII ML30MJ2U7I. Melting Point: 1124; Melting Point: Decomposes @ 1124 °C; Melting Point: 1127 °C.

Identification

CAS Registry Number	139939-75-6
PubChem CID	24083
Molecular formula	MgSO4
IUPAC name	magnesium sulfate
UNII (FDA)	ML30MJ2U7I

Computed Descriptors

Molecular Weight	120.37
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	119.9367713
Monoisotopic Mass	119.9367713
Topological Polar Surface Area	88.6
Heavy Atom Count	6
Formal Charge	0
Complexity	62.2

Physical & Chemical Properties

Melting Point	1124
Melting Point	Decomposes @ 1124 °C
Melting Point	1127 °C
Solubility	710
Solubility	In water, 360 g/l @ 20 °C
Density	2.66 g/cu cm
Density	2.66 g/cm³
Density	2.66 @25 °C
LogP	-0.91
Decomposition	1124 °C

Physical description & handling notes

• Dry Powder; Large Crystals; Liquid; Other Solid; Liquid; Other Solid; Dry Powder; CBI; Large Crystals
• White solid with a bitter, saline taste; [ICSC]
• HYGROSCOPIC ODOURLESS WHITE CRYSTALS OR POWDER.
• Colorless crystalline solid
• Orthorhombic crystals
• Opaque powder

Regulatory Status

Regulatory & Food Contact	NUTRIENT_SUPPLEMENT: Food Additives NOT SPECIFIED TRS 947-JECFA68/ FAS 59-JECFA68/ CIR / INCI: Cosmetic ingredients (Magnesium Sulfate) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Bulking; Hair conditioning; Viscosity controlling
GHS notification summary	41.4% (1034 / 2499)

GHS Hazard Classification

GHS notification summary	41.4% (1034 / 2499)
Reported hazard statements	H302 (57.2%), H312 (51.5%), H332 (57.1%)

Documented Uses

• CIR ingredient: Magnesium Sulfate
• Used to weight cotton and silk, augment bleaching of chlorinated lime, tan leather, fireproof fabrics, dye and print fabrics, and to manufacture fertilizers, mineral water, explosives, and matches; Used therapeutically; [Merck Index]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Leather Tanning and Processing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• WEIGHTING COTTON AND SILK; INCR BLEACHING ACTION OF CHLORINATED LIME; MFR OF MOTHER-OF-PEARL AND FROSTED PAPERS; FIRE-PROOFING FABRICS; DYEING & PRINTING CALICOS; IN FERTILIZERS; EXPLOSIVES, MATCHES; MINERAL WATER; TANNING LEATHER.

Synonyms

MAGNESIUM SULFATE; 7487-88-9; Magnesium sulfate anhydrous; MgSO4; Sulfuric acid magnesium salt (1:1); Magnesiumsulfat; Magnesium sulfate (1:1); Sal Angalis; Sal De sedlitz; Tomix OT; Sulfuric acid magnesium salt; Magnesium(II) sulfate; Magnesium sulfate,anhydrous; Magnesium sulphate anhydrous; ML30MJ2U7I; Magnesium sulphate, anhydrous

Frequently Asked Questions

What are the CAS number and molecular formula of magnesium sulphate monohydrate?

CAS 139939-75-6; molecular formula MgSO4; molecular weight — g/mol.

What other names is magnesium sulphate monohydrate known by?

MAGNESIUM SULFATE, 7487-88-9, Magnesium sulfate anhydrous, MgSO4, Sulfuric acid magnesium salt (1:1), Magnesiumsulfat.

What is the regulatory status of magnesium sulphate monohydrate?

Documented regulatory listings: NUTRIENT_SUPPLEMENT: Food Additives; NOT SPECIFIED; TRS 947-JECFA68/.

Is magnesium sulphate monohydrate classified as hazardous?

41.4% of GHS notifications report no hazard classification (1034 of 2499).

What are the key physical properties of magnesium sulphate monohydrate?

Melting Point: 1124; Melting Point: Decomposes @ 1124 °C; Melting Point: 1127 °C; Solubility: 710.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.