63140

Magnesiumsulfat Heptahydrat

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

• Synonym(e): Epsom-Salz
• Lineare Formel: MgSO₄ · 7H₂O
• CAS-Nummer: 10034-99-8
• Molekulargewicht: 246.47
• EG-Nummer: 231-298-2
• MDL-Nummer: MFCD00149785
• UNSPSC-Code: 12352302
• eCl@ss: 38030409
• PubChem Substanz-ID: 329759792
• NACRES: NB.24
• Assay: ≥99.0% (KT)
• Form: powder or crystals

Eigenschaften

• Qualität: ACS reagent; puriss. p.a.
• Qualitätsniveau: 200
• Dampfdichte: <0.01 (vs air)
• Dampfdruck: <0.1 mmHg ( 20 °C)
• Assay: ≥99.0% (KT)
• Form: powder or crystals
• Verunreinigungen: ≤0.005% insoluble matter
• pH-Wert: 5.0-8.2 (25 °C, 50 mg/mL in H₂O)
• Anionenspuren: chloride (Cl^-): ≤5 mg/kg; nitrate (NO₃^-): ≤20 mg/kg
• Kationenspuren: 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
• InChIKey: WRUGWIBCXHJTDG-UHFFFAOYSA-L

Beschreibung

Anwendung

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.

Sicherheitshinweise

• Lagerklassenschlüssel: 13 - Non Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable