209988

Zinc

dust, <10 μm, ≥98%

• Synonym(s): Zn
• Empirical Formula (Hill Notation): Zn
• CAS Number: 7440-66-6
• Molecular Weight: 65.39
• MDL number: MFCD00011291
• UNSPSC Code: 12352300
• PubChem Substance ID: 57647890
• NACRES: NA.22

Properties

• vapor pressure: 1 mmHg ( 487 °C)
• Quality Level: 200
• assay: ≥98%
• form: dust
• reaction suitability: core: zinc; reagent type: catalyst
• resistivity: 5.8 μΩ-cm, 20°C
• particle size: <10 μm
• bp: 907 °C (lit.)
• mp: 420 °C (lit.)
• density: 7.133 g/mL at 25 °C (lit.)
• SMILES string: [Zn]
• InChI: 1S/Zn
• InChI key: HCHKCACWOHOZIP-UHFFFAOYSA-N

Description

General description

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.

Application

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.

Safety Information

• pictograms: GHS09
• signalword: Warning
• hcodes: H410
• pcodes: P273 - P391 - P501
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves