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13143

Sigma-Aldrich

Magnesium sulfate hydrate

puriss., dried, 99.0-101.0% MgSO4 basis (in dried substance)

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About This Item

Linear Formula:
MgSO4 · aq
CAS Number:
22189-08-8
Molecular Weight:
120.37 (anhydrous basis)
EC Number:
231-298-2
MDL number:
MFCD00011110
UNSPSC Code:
12352302
eCl@ss:
38030409
PubChem Substance ID:
329750023
NACRES:
NA.55

grade

puriss.

Assay

99.0-101.0% MgSO4 basis (in dried substance)

form

powder

quality

dried

impurities

acidity or alkalinity, complies
 residual solvents, complies
≤0.0015% heavy metals (as Pb)

loss

26-32% loss on drying, 400-500 °C

pH

6.5-8 (25 °C, 120.4 g/L)

anion traces

chloride (Cl-): ≤400 mg/kg

cation traces

As: ≤2 mg/kg
Fe: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

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

InChI

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

InChI key

CSNNHWWHGAXBCP-UHFFFAOYSA-L

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General description

Magnesium sulfate (Epsom Salt) is an inorganic salt. Quantitative determination of the solubility of manganese sulfate monohydrate in the presence of a co-salt of magnesium has been studied. Raman spectra of 10 hydrated and anhydrous forms of magnesium sulfates have been reported. Their crystal structure and space groups have been evaluated by Raman and XRD (X-ray diffraction) studies.

Storage Class Code

11 - Combustible Solids

WGK

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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