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243469

Zinc

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

Zinc

Synonym(s):

Zn

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100 G

$41.70

500 G

$198.00

2 KG

$429.00

$41.70


Estimated to ship onApril 20, 2026Details


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About This Item

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

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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

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This Item
32493096454356018
assay

≥99.8%

assay

99.995% trace metals basis

assay

-

assay

99.9% trace metals basis

reaction suitability

core: zinc, reagent type: catalyst

reaction suitability

-

reaction suitability

core: zinc, reagent type: catalyst

reaction suitability

core: zinc, reagent type: catalyst

form

granular

form

powder

form

powder

form

foil

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

mp

420 °C (lit.)

mp

420 °C (lit.)

mp

420 °C (lit.)

mp

420 °C (lit.)

bp

907 °C (lit.)

bp

907 °C (lit.)

bp

907 °C (lit.)

bp

907 °C (lit.)

General description

Zinc granules are pure metallic zinc in a granular form, they provide a high surface area for increased reactivity.[1] 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.[2]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.[2]

Application

Zinc granules can be used to prepare:

  • organozinc reagents commonly used in Negishi or Fukuyama couplings[3][4]
  • Reformatsky reagents[5][6]
  • Simmons-Smith reagents[7][8]

pictograms

Environment

signalword

Warning

hcodes

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)


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Reagents for Organic Synthesis
L. F. Fieser and M. Fieser
Reagents for Organic Synthesis, 1 (1967)
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)
Use of activation methods for organozinc reagents.
Erdik E
Tetrahedron, 43(10), 2203-2212 (1987)
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)

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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