209988

Zinc

dust, <10 μm, ≥98%

• Sinonimo/i: Zn
• Formula empirica (notazione di Hill): Zn
• Numero CAS: 7440-66-6
• Peso molecolare: 65.39
• Numero MDL: MFCD00011291
• Codice UNSPSC: 12161600
• ID PubChem: 57647890
• NACRES: NA.22

Proprietà

• Tensione di vapore: 1 mmHg ( 487 °C)
• Saggio: ≥98%
• Stato: dust
• Impiego in reazioni chimiche: core: zinc; reagent type: catalyst
• Resistività: 5.8 μΩ-cm, 20°C
• Dimensione particelle: <10 μm
• P. ebollizione: 907 °C (lit.)
• Punto di fusione: 420 °C (lit.)
• Densità: 7.133 g/mL at 25 °C (lit.)
• Stringa SMILE: [Zn]
• InChI: 1S/Zn; HCHKCACWOHOZIP-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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.

Informazioni sulla sicurezza

• Pittogrammi: GHS09
• Avvertenze: Warning
• Indicazioni di pericolo: H410
• Consigli di prudenza: P273 - P391 - P501
• Classi di pericolo: Aquatic Acute 1 - Aquatic Chronic 1
• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Eyeshields, Gloves