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M1880

Sigma-Aldrich

Magnesium sulfate heptahydrate

ReagentPlus®, ≥99.0%

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Synonym(s):
Epsom salts
Linear Formula:
MgSO4 · 7H2O
CAS Number:
10034-99-8
Molecular Weight:
246.47
EC Number:
231-298-2
MDL number:
MFCD00149785
UNSPSC Code:
12352300
eCl@ss:
38030409
PubChem Substance ID:
329817920
NACRES:
NA.21

vapor density

<0.01 (vs air)

Quality Level

200

vapor pressure

<0.1 mmHg ( 20 °C)

product line

ReagentPlus®

assay

≥99.0%

form

powder or crystals

pH

5-8 (50 g/L)

SMILES string

O.O.O.O.O.O.O.[Mg++].[O-]S([O-])(=O)=O

InChI

1S/Mg.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2

InChI key

WRUGWIBCXHJTDG-UHFFFAOYSA-L

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General description

Magnesium sulfate heptahydrate is hydrated salt of magnesium sulfate. It is hygroscopic in its anhydrous form. It can be used as a hydrophilic additive and as a catalyst in organic synthesis.

Application

Magnesium sulfate heptahydrate is used:
  • As an effective,catalyst for the condensation of o-phenylenediamine and 1,2-dicarbonyl compounds at room temperature.
  • As a catalyst in the synthesis of tri/tetra-substituted imidazoles from wide range of aromatic aldehydes, benzil, aliphatic and aromatic primary amines and ammonium acetate.
  • In the preparation of amorphous magnesium borates of various composition by interacting with sodium borate decahydrate.

Magnesium sulfate heptahydrate may be used as a catalyst for the condensation of o-phenylenediamines with 1,2-dicarbonyl compounds to form phenazine and quinoxaline derivatives. It may also be used as a catalyst along with indium (III) triflate for the synthesis of tri/tetra-substituted imidazoles.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A facile synthesis of phenazine and quinoxaline (new 1,4-benzo diazine) derivatives using magnesium sulfate heptahydrate as a catalyst.
Karami B and Khodabakhshi S.
J. Serb. Chem. Soc., 76(9), 1191-1198 (2011)
Size-dependent growth of magnesium sulfate heptahydrate.
Rousseau RW and Parks RM.
Industrial & Engineering Chemistry Fundamentals, 20(1), 71-76 (1981)
New conditions for the effective synthesis of tri and tetrasubstituted imidazoles catalysed by recyclable indium (III) triflate and magnesium sulfate heptahydrate.
Karami B, et al.
J. Chem. Res. (M), 38(1), 41-45 (2014)
Shoshana Naiman et al.
Cell reports, 29(12), 4127-4143 (2019-12-19)
The pro-longevity enzyme SIRT6 regulates various metabolic pathways. Gene expression analyses in SIRT6 heterozygotic mice identify significant decreases in PPARα signaling, known to regulate multiple metabolic pathways. SIRT6 binds PPARα and its response element within promoter regions and activates gene transcription.
Karen J Gibbins et al.
Obstetrics and gynecology, 121(2 Pt 1), 235-240 (2013-01-25)
Clinical trials support the efficacy and safety of magnesium sulfate for cerebral palsy prevention. We evaluated the implementation of a clinical protocol for the use of magnesium for cerebral palsy prevention in our large women's hospital, focusing on uptake, indications
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