Skip to Content
Merck
CN
All Photos(1)

Documents

63140

Sigma-Aldrich

Magnesium sulfate heptahydrate

puriss. p.a., ACS reagent, ≥99.0% (KT)

Sign Into View Organizational & Contract Pricing

Synonym(s):
Epsom salts
Linear Formula:
MgSO4 · 7H2O
CAS Number:
Molecular Weight:
246.47
EC Number:
MDL number:
UNSPSC Code:
12352300
eCl@ss:
38030409
PubChem Substance ID:
NACRES:
NB.24

grade

ACS reagent
puriss. p.a.

Quality Level

vapor density

<0.01 (vs air)

vapor pressure

<0.1 mmHg ( 20 °C)

Assay

≥99.0% (KT)

form

powder or crystals

impurities

≤0.005% insoluble matter

pH

5.0-8.2 (25 °C, 50 mg/mL in H2O)

anion traces

chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤20 mg/kg

cation traces

As: ≤0.1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤1 mg/kg
K: ≤10 mg/kg
Mn: ≤5 mg/kg
NH4+: ≤20 mg/kg
Na: ≤10 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Magnesium sulfate heptahydrate can be used as a catalyst to synthesize tri/tetra-substituted imidazoles via a one-pot condensation reaction of aromatic aldehydes, benzil, aliphatic and aromatic primary amines, and ammonium acetate. It is also used to synthesize phenazine and quinoxaline derivatives.

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

ESR studies of (Cu(H2O)6)2+ in magnesium sulfate heptahydrate.
Radhakrishna S and Bhaskar Rao T.
Journal of Magnetic Resonance, 32(1), 71-81 (1978)
Kirsten M Ellegaard et al.
Current biology : CB, 30(13), 2520-2531 (2020-06-13)
Most bacterial species encompass strains with vastly different gene content. Strain diversity in microbial communities is therefore considered to be of functional importance. Yet little is known about the extent to which related microbial communities differ in diversity at this
Sulfates on Mars: A systematic Raman spectroscopic study of hydration states of magnesium sulfates.
Wang A, et al.
Geochimica et Cosmochimica Acta, 70(24), 6118-6135 (2006)
Philippe Jean et al.
Nature communications, 11(1), 3208-3208 (2020-06-27)
Inner hair cells (IHCs) are the primary receptors for hearing. They are housed in the cochlea and convey sound information to the brain via synapses with the auditory nerve. IHCs have been thought to be electrically and metabolically independent from
Petra Marhava et al.
Developmental cell, 52(2), 223-235 (2019-12-24)
Cell polarity is a key feature in the development of multicellular organisms. For instance, asymmetrically localized plasma-membrane-integral PIN-FORMED (PIN) proteins direct transcellular fluxes of the phytohormone auxin that govern plant development. Fine-tuned auxin flux is important for root protophloem sieve

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service