209988

Zink

dust, <10 μm, ≥98%

• Synonym(e): Zn
• Empirische Formel (Hill-System): Zn
• CAS-Nummer: 7440-66-6
• Molekulargewicht: 65.39
• MDL-Nummer: MFCD00011291
• UNSPSC-Code: 12161600
• PubChem Substanz-ID: 57647890
• NACRES: NA.22

Eigenschaften

• Dampfdruck: 1 mmHg ( 487 °C)
• Qualitätsniveau: 200
• Assay: ≥98%
• Form: dust
• Eignung der Reaktion: core: zinc; reagent type: catalyst
• Widerstandsfähigkeit: 5.8 μΩ-cm, 20°C
• Partikelgröße: <10 μm
• bp: 907 °C (lit.)
• mp (Schmelzpunkt): 420 °C (lit.)
• Dichte: 7.133 g/mL at 25 °C (lit.)
• SMILES String: [Zn]
• InChI: 1S/Zn
• InChIKey: HCHKCACWOHOZIP-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Zinc is an inexpensive, readily available versatile reagent in organic reactions and is commonly used as a reducing agent in organic synthesis. Zinc dust is used to reduce carbonyls, carbon-halide bonds, carbon-oxygen bonds, alkynes, and heteroatom bonds such as N-N and N-O bonds. It is also used to prepare various organozinc reagents. Additionally, Zinc has been used in several well-known named reactions, like the Reformatsky reaction, the Knorr pyrrole synthesis, the Serini reaction, and the Simmons-Smith cyclopropanation.

Anwendung

Reducing agent; used for preparation of organozinc reagents, Reformatsky reagents, and the Simmons-Smith reagent (cyclopropanation).

Zinc is also used as a:

• Reductant in the hydrothermal CO₂ reduction to formic acid in batch reactors.
• Catalyst in the synthesis of propargylamines by one pot, three component coupling of aldehydes, amines and alkynes in acetonitrile.

Sicherheitshinweise

• Piktogramme: GHS09
• Signalwort: Warning
• H-Sätze: H410
• P-Sätze: P273 - P391 - P501
• Gefahreneinstufungen: Aquatic Acute 1 - Aquatic Chronic 1
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 2
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves