230391

Sulfate de magnésium heptahydraté

ACS reagent, ≥98%

• Synonyme(s) : Sels d’Epsom
• Formule linéaire : MgSO₄ · 7H₂O
• CAS Number: 10034-99-8
• Poids moléculaire : 246.47
• Numéro CE : 231-298-2
• Numéro MDL: MFCD00149785
• Code UNSPSC : 12352302
• eCl@ss : 38030409
• ID de substance PubChem : 329752370
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent
• Niveau de qualité: 200
• Densité de vapeur: <0.01 (vs air)
• Pression de vapeur: <0.1 mmHg ( 20 °C)
• Essai: ≥98%; 98.0-102.0% (ACS specification)
• Forme: crystals
• Impuretés: ≤0.005% insolubles
• pH: 5.0-8.2 (25 °C, 5%)
• Traces d'anions: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.002%
• Traces de cations: Ca: ≤0.02%; Fe: ≤5 ppm; K: ≤0.005%; Mn: ≤5 ppm; NH₄⁺: ≤0.002%; Na: ≤0.005%; Sr: ≤0.005%; heavy metals: ≤5 ppm (by ICP-OES)
• Chaîne SMILES: 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
• Clé InChI: WRUGWIBCXHJTDG-UHFFFAOYSA-L

Description

Description générale

Magnesium sulfate heptahydrate is a hydrated salt of magnesium. It is commonly used as a catalyst in organic synthesis.

Application

Magnesium sulfate heptahydrate can be used as a Lewis acid catalyst to synthesize:      

• Phenazine and quinoxaline derivatives via a condensation reaction between o-phenylenediamines and 1,2-dicarbonyl compounds.
• Imidazole derivatives via one-pot multicomponent condensation reaction of aromatic aldehydes, benzil, aliphatic, and aromatic primary amines.

NaBH₄ supported on MgSO₄ 7H₂O can be used as an efficient catalyst for the reduction of α, β-unsaturated carbonyl compounds to corresponding alcohols.

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable