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Description

Magnesium sulphate heptahydrate is identified by CAS 10034-99-8, molecular formula H14MgO11S and molecular weight 246.01 g/mol. UNII SK47B8698T; ChEBI 31795; InChIKey WRUGWIBCXHJTDG-UHFFFAOYSA-L. Density: 1.68 @25 °C.

Identification

CAS Registry Number	10034-99-8
PubChem CID	24843
Molecular formula	H14MgO11S
Molecular weight	246.01 g/mol
IUPAC name	magnesium;sulfate;heptahydrate
InChIKey	WRUGWIBCXHJTDG-UHFFFAOYSA-L
UNII (FDA)	SK47B8698T
ChEBI ID	CHEBI:31795

Computed Descriptors

Molecular Weight	246.48
Hydrogen Bond Donor Count	7
Hydrogen Bond Acceptor Count	11
Rotatable Bond Count	0
Exact Mass	246.0107241
Monoisotopic Mass	246.0107241
Topological Polar Surface Area	95.6
Heavy Atom Count	13
Formal Charge	0
Complexity	62.2

Physical & Chemical Properties

Density	1.68 @25 °C

Physical description & handling notes

• Liquid; Large Crystals; Dry Powder

Regulatory Status

GHS notification summary	100% (424 / 424)

GHS Hazard Classification

GHS notification summary	100% (424 / 424)

Documented Uses

• EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives
• Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
• Not Known or Reasonably Ascertainable
• Information on 24 consumer products that contain Magnesium sulfate heptahydrate in the following categories is provided:
• 2022: 5,000,000 - <10,000,000 lb
• 2021: 5,000,000 - <10,000,000 lb

Synonyms

Magnesium sulfate heptahydrate; 10034-99-8; Epsom salt; magnesium sulphate heptahydrate; Magnesia sulphurica; Magnesium sulfate (1:1) heptahydrate; Epsom salt(heptahydrate); Bitter salt; Sulfuric acid magnesium salt (1:1), heptahydrate; SK47B8698T; Magnesii sulfatis heptahydras; CHEBI:31795; Magnesium Sulfate, Heptahydrate; Theraworx Relief; Humco Epson Salt; CVS muscle relief

Frequently Asked Questions

What are the CAS number and molecular formula of Magnesium sulphate heptahydrate?

CAS 10034-99-8; molecular formula H14MgO11S; molecular weight 246.01 g/mol.

What other names is Magnesium sulphate heptahydrate known by?

Magnesium sulfate heptahydrate, 10034-99-8, Epsom salt, magnesium sulphate heptahydrate, Magnesia sulphurica, Magnesium sulfate (1:1) heptahydrate.

Is Magnesium sulphate heptahydrate classified as hazardous?

100% of GHS notifications report no hazard classification (424 of 424).

What are the key physical properties of Magnesium sulphate heptahydrate?

Density: 1.68 @25 °C.

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.