243469
Zinc
granular, 20-30 mesh, ACS reagent, ≥99.8%
Synonym(s):
Zn
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About This Item
Empirical Formula (Hill Notation):
Zn
CAS Number:
Molecular Weight:
65.39
EC Number:
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22
grade
ACS reagent
Quality Level
vapor pressure
1 mmHg ( 487 °C)
Assay
≥99.8%
form
granular
reaction suitability
core: zinc
reagent type: catalyst
resistivity
5.8 μΩ-cm, 20°C
particle size
20-30 mesh
bp
907 °C (lit.)
mp
420 °C (lit.)
density
7.133 g/mL at 25 °C (lit.)
cation traces
Fe: ≤0.01%
Pb: ≤0.01%
suitability
passes application test for determination of arsenic (As)
SMILES string
[Zn]
InChI
1S/Zn
InChI key
HCHKCACWOHOZIP-UHFFFAOYSA-N
General description
Zinc granules are pure metallic zinc in a granular form, they provide a high surface area for increased reactivity. They serve as a reducing agent, catalyst, or precursor for various chemical reactions. Zinc granules are commonly used for synthesis of organometallic compounds. It reacts with organic halides to form alkyl or aryl zinc compounds, which serve as powerful nucleophiles in carbon-carbon bond formations. This reaction, known as the Barbier reaction, enables the introduction of diverse functional groups into organic molecules.Zinc granules also find application in the synthesis of pharmaceuticals and fine chemicals. They can be employed in the reduction of functional groups like nitro, nitrile, or azide to their corresponding amines. Additionally, zinc granules are involved in other carbon-carbon bond forming reactions, such as the Reformatsky reaction and the Simmons-Smith reaction.
Application
Zinc granules can be used to prepare:
- organozinc reagents commonly used in Negishi or Fukuyama couplings
- Reformatsky reagents
- Simmons-Smith reagents
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1
Storage Class Code
11 - Combustible Solids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Use of activation methods for organozinc reagents.
Erdik E
Tetrahedron, 43(10), 2203-2212 (1987)
A Convenient Procedure for the Preparation of Reactive Zinc for the Reformatsky Reaction.
Bouhel E
Synthetic Communications, 21(1), 133-136 (1991)
A scalable zinc activation procedure using dibal-h in a reformatsky reaction.
Girgis M J
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Cyclopropanation of Electron-deficient Olefins with Dibromomethane by Ni (0) Complexes and Zinc.
Kanai H
Bulletin of the Chemical Society of Japan, 56(4), 1025-1029 (1983)
Cyclopropanes from an Easily Prepared, Highly Active Zinc?Copper Couple, Dibromomethane, and Olefins.
LeGoff E
The Journal of Organic Chemistry, 29(7), 2048-2050 (1964)
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