243469
Zinc
ACS reagent grade, ≥99.8%, granular, 20-30 mesh
Synonyme(s) :
Zn
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A propos de cet article
Formule linéaire :
Zn
Numéro CAS:
Poids moléculaire :
65.39
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
11101719
EC Number:
231-175-3
MDL number:
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Zinc, granular, 20-30 mesh, ACS reagent, ≥99.8%
grade
ACS reagent
Quality Segment
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
signalword
Warning
hcodes
pcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1
Classe de stockage
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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