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209988

Sigma-Aldrich

Zinc

dust, <10 μm, ≥98%

Sinonimo/i:

Zn

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100 G
CHF 54.40
1 KG
CHF 93.50
5 KG
CHF 247.00

CHF 54.40

Spedizione prevista il01 giugno 2025

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100 G
CHF 54.40
1 KG
CHF 93.50
5 KG
CHF 247.00

About This Item

Formula empirica (notazione di Hill):
Zn
Numero CAS:
7440-66-6
Peso molecolare:
65.39
Numero MDL:
MFCD00011291
Codice UNSPSC:
11101719
ID PubChem:
57647890
NACRES:
NA.22

CHF 54.40

Spedizione prevista il01 giugno 2025

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Tensione di vapore

1 mmHg ( 487 °C)

Livello qualitativo

200

Saggio

≥98%

Stato

dust

Impiego in reazioni chimiche

core: zinc
reagent type: catalyst

Resistività

5.8 μΩ-cm, 20°C

Dimensione particelle

<10 μm

P. ebollizione

907 °C (lit.)

Punto di fusione

420 °C (lit.)

Densità

7.133 g/mL at 25 °C (lit.)

Stringa SMILE

[Zn]

InChI

1S/Zn
HCHKCACWOHOZIP-UHFFFAOYSA-N

Categorie correlate

Descrizione generale

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. [1] 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.

Applicazioni

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.[2]

Pittogrammi

Environment
GHS09

Avvertenze

Warning

Indicazioni di pericolo

H410

Consigli di prudenza

P273 - P391 - P501

Classi di pericolo

Aquatic Acute 1 - Aquatic Chronic 1

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves

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Certificati d'analisi (COA)

Lot/Batch Number
0000431151
0000431151
0000421978
0000421978
MKCX2790

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Activated zinc dust
Smith CR
Synlett, 2009(09), 1522-1523 (2009)
Nicholas A Isley et al.
Green chemistry : an international journal and green chemistry resource : GC, 2015, 307-307 (2014-12-23)
Alkyl bromides and chlorides can be reduced to the corresponding hydrocarbons utilizing zinc in the presence of an amine additive. The process takes place in water at ambient temperatures, enabled by a commercially available designer surfactant. The reaction medium can
Efficient one-pot synthesis of propargylamines using zinc dust
Kantam ML, et al.
Tetrahedron Letters, 48(41), 7332-7334 (2007)
Knochel, P.
Chemical Reviews, 93, 217-217 (1993)
Sara Eyal et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 50(5), 798-806 (2009-05-01)
Studies in rodents indicate that the disruption of P-glycoprotein (P-gp) function increases drug distribution into the developing fetus and organs such as the brain. To simultaneously and serially evaluate the effect of P-gp activity and inhibition on the tissue distribution
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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