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epsom salt

H14MgO11S

Epsom salt has the molecular formula H14MgO11S and a molar mass of 246.48 g/mol.

Properties

Molecular formulaH14MgO11S
Molar mass246.48 g/mol
Exact (monoisotopic) mass246.01072 g/mol
Density1.68 g/cm³
Topological polar surface area95.6 Ų
Hydrogen-bond donors / acceptors7 / 11
Heavy atoms13
InChIKeyWRUGWIBCXHJTDG-UHFFFAOYSA-L
IUPAC namemagnesium;sulfate;heptahydrate

Elemental composition

27 atoms across 4 elements, by mass.

ElementAtomsPercent by mass
Oxygen (O)1171.40%
Sulfur (S)113.01%
Magnesium (Mg)19.86%
Hydrogen (H)145.73%

Calculate with epsom salt

Related compounds

Molar mass and elemental composition are computed from IUPAC 2021 conventional atomic weights. Formula, exact mass and the computed descriptors come from PubChem, which is US government work and in the public domain. Melting point, boiling point and density come from Wikidata under CC0. Properties with no figure shown are absent from those sources rather than zero.