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Merck
CN

243469

Zinc

ACS reagent grade, ≥99.8%, granular, 20-30 mesh

Synonym(s):

Zn

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About This Item

Empirical Formula (Hill Notation):
Zn
CAS Number:
7440-66-6
Molecular Weight:
65.39
NACRES:
NA.22
PubChem Substance ID:
24854618
UNSPSC Code:
11101719
EC Number:
231-175-3
MDL number:
MFCD00011291

Key Documents

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Product Name

Zinc, granular, 20-30 mesh, ACS reagent, ≥99.8%

InChI key

HCHKCACWOHOZIP-UHFFFAOYSA-N

InChI

1S/Zn

SMILES string

[Zn]

grade

ACS reagent

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)

Quality Level

200

Related Categories

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

pictograms

Environment
GHS09

signalword

Warning

hcodes

H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

监管及禁止进口产品
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Certificates of Analysis (COA)

Lot/Batch Number
0000480478
0000480478
MKCX8694
0000428367
0000428367

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Reagents for Organic Synthesis
L. F. Fieser and M. Fieser
Reagents for Organic Synthesis, 1 (1967)
Use of activation methods for organozinc reagents.
Erdik E
Tetrahedron, 43(10), 2203-2212 (1987)
A scalable zinc activation procedure using dibal-h in a reformatsky reaction.
Girgis M J
Organic Process Research & Development, 13(6), 1094-1099 (2009)
Advanced Organic Chemistry: Reactions, Mechanisms, and Structure
March, J
Advanced Organic Chemistry (2007)
Highly efficient, general procedure for the preparation of alkylzinc reagents from unactivated alkyl bromides and chlorides.
Huo S
Organic Letters, 5(4), 423-425 (2003)
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