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Merck
CN

63140

Magnesium sulfate heptahydrate

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

Synonym(s):

Epsom salts

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About This Item

Linear Formula:
MgSO4 · 7H2O
CAS Number:
Molecular Weight:
246.47
PubChem Substance ID:
eCl@ss:
38030409
UNSPSC Code:
12352302
NACRES:
NB.24
EC Number:
231-298-2
MDL number:
Assay:
≥99.0% (KT)
Grade:
puriss. p.a., ACS reagent
Form:
powder or crystals
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grade

puriss. p.a., ACS reagent

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

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.


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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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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)
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)
Ran D Goldman et al.
Pediatrics, 132(6), e1634-e1641 (2013-11-28)
Vaso-occlusive episodes (VOEs) are the most common complication of sickle cell disease in children. Treatment with magnesium seems to improve cellular hydration and may result in reduced vaso-occlusion. This study aimed to determine if intravenous (IV) magnesium sulfate (MgSO4) reduces



Global Trade Item Number

SKUGTIN
279897-1G04061837639685
63140-1KG-F04061832721132
63140-100G-F04061832721125
63140-500G-F04061832721149