723320

Magnesium (in Sure/Seal^™ Flasche)

in a Sure/Seal^™ bottle, turnings, anhydrous tetrahydrofuran 37.5 mmol

• Synonym(e): Magnesium
• Empirische Formel (Hill-System): Mg
• CAS-Nummer: 7439-95-4
• Molekulargewicht: 24.31
• Beilstein: 4948473
• MDL-Nummer: MFCD00085308
• UNSPSC-Code: 12352300
• PubChem Substanz-ID: 329763997
• NACRES: NA.22

Eigenschaften

• Dampfdruck: 1 mmHg ( 621 °C)
• Form: turnings
• Selbstzündungstemp.: 950 °F
• Zusammensetzung: anhydrous tetrahydrofuran, 37.5 mmol
• Eignung der Reaktion: reagent type: reductant
• Widerstandsfähigkeit: 4.46 μΩ-cm, 20°C
• bp: 1090 °C (lit.)
• mp (Schmelzpunkt): 648 °C (lit.)
• Dichte: 1.74 g/mL at 25 °C (lit.)
• SMILES String: [Mg]
• InChI: 1S/Mg
• InChIKey: FYYHWMGAXLPEAU-UHFFFAOYSA-N

Beschreibung

Anwendung

Magnesium turnings (Mg) can be used to prepare reactive organomagnesium compounds (Grignard reagents, GR) by reacting with alkyl, allyl, vinyl, or aryl halides. These GR reagents are widely used in organic synthesis to produce useful chemical intermediates. Mg can also be used to prepare tetraisopropyl- and tetrabutyl-distibane by dehalogenation of diisopropyl- and dibutyl-antinomy bromide, respectively.

Sonstige Hinweise

Based on preparing 0.5 M solution of organomagnesium reagent and 40% headspace.

Rechtliche Hinweise

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Sicherheitshinweise

• Piktogramme: GHS02,GHS08,GHS07
• Signalwort: Danger
• H-Sätze: H225,H251,H302,H319,H335,H351
• P-Sätze: P201 - P210 - P235 - P301 + P312 + P330 - P305 + P351 + P338 - P308 + P313
• Gefahreneinstufungen: Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - Self-heat. 1 - STOT SE 3
• Zielorgane: Respiratory system
• Zusätzliche Gefahrenhinweise: EUH018,EUH019
• Lagerklassenschlüssel: 4.2 - Pyrophoric and self-heating hazardous materials
• WGK: WGK 1
• Flammpunkt (°F): 1.4 °F - closed cup
• Flammpunkt (°C): -17.0 °C - closed cup