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63136

Sigma-Aldrich

Magnesium sulfate

puriss. p.a., drying agent, anhydrous, ≥98.0% (KT), powder (very fine)

Empirical Formula (Hill Notation):
MgSO4
Número CAS:
Peso molecular:
120.37
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

Nível de qualidade

200

grau

drying agent
puriss. p.a.

densidade de vapor

<0.01 (vs air)

pressão de vapor

<0.1 mmHg ( 20 °C)

teor

≥98.0% (KT)

forma

powder (very fine)

perda

≤2% loss on ignition, 600 °C

pH

~7.9 (25 °C, 50 g/L)

traços de ânion

chloride (Cl-): ≤50 mg/kg
nitrate (NO3-): ≤40 mg/kg

traços de cátion

Al: ≤20 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤400 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
K: ≤200 mg/kg
Li: ≤5 mg/kg
Mn: ≤20 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤20 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

temperatura de armazenamento

2-8°C

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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Descrição geral

Magnesium sulfate is an anhydrous magnesium salt.

Aplicação

Anhydrous magnesium sulfate can be used as a drying agent in organic synthesis. Due to its high affinity towards water molecules, it removes trace amount of dissolved water from the organic extracts during the workup process. It is also used as a drying agent in the off-line supercritical fluid extraction method.

Storage Class Code

13 - Non Combustible Solids

WGK Alemanha

WGK 1

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Certificado de análise

Certificado de origem

Development of an improved method to extract pesticide residues in foods using acetontrile with magnesium sulfate and chloroform
Liu G, et al.
Journal of Chromatography A, 1218, 1429-1436 (2011)
Validation of Analytical Method for Determination of 352 Pesticide Residues in Soil by LC- MS/MS.
El-Gohary AA.
Middle East Journal of Applied Sciences, 4(3), 589-599 (2014)
Evaluation of drying agents for off-line supercritical fluid extraction
Burford MD, et al.
Journal of Chromatography A, 657, 413-427 (1993)
Comparison of magnesium sulfate and sodium sulfate for removal of water from pesticide extracts of foods
Schenck FJ, et al.
Journal of Sulfur Chemistry, 85, 1177-1180 (2002)
Eagleson M.
Concise Encyclopedia Chemistry, 889-889 (1994)

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