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Merck

209988

Sigma-Aldrich

Zink

dust, <10 μm, ≥98%

Synonym(e):

Zn

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100 G
€ 56,60
1 KG
€ 103,00
5 KG
€ 294,00

€ 56,60


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100 G
€ 56,60
1 KG
€ 103,00
5 KG
€ 294,00

About This Item

Empirische Formel (Hill-System):
Zn
CAS-Nummer:
Molekulargewicht:
65.39
MDL-Nummer:
UNSPSC-Code:
11101719
PubChem Substanz-ID:
NACRES:
NA.22

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Dampfdruck

1 mmHg ( 487 °C)

Qualitätsniveau

Assay

≥98%

Form

dust

Eignung der Reaktion

core: zinc
reagent type: catalyst

Widerstandsfähigkeit

5.8 μΩ-cm, 20°C

Partikelgröße

<10 μm

bp

907 °C (lit.)

mp (Schmelzpunkt)

420 °C (lit.)

Dichte

7.133 g/mL at 25 °C (lit.)

SMILES String

[Zn]

InChI

1S/Zn

InChIKey

HCHKCACWOHOZIP-UHFFFAOYSA-N

Allgemeine Beschreibung

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.

Anwendung

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]

Piktogramme

Environment

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Aquatic Acute 1 - Aquatic Chronic 1

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 2

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves


Zulassungslistungen

Zulassungslistungen werden hauptsächlich für chemische Produkte erstellt. Für nicht-chemische Produkte können hier nur begrenzte Angaben gemacht werden. Kein Eintrag bedeutet, dass keine der Komponenten gelistet ist. Es liegt in der Verantwortung des Benutzers, die sichere und legale Verwendung des Produkts zu gewährleisten.

EU REACH Annex XVII (Restriction List)

CAS No.

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Analysenzertifikate (COA)

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Zink powder, max. particle size 150 micron, weight 20&#160;g, high purity 99.999%

GF09421095

Zink

Zink powder, max. particle size 150 micron, weight 200&#160;g, purity 99.9%

GF03217823

Zink

Zinc granular for analysis, particle size about 3-8 mm EMSURE&#174; ISO

Supelco

1.08780

Zinc

Zink powder for analysis particle size &#174;

Supelco

1.08789

Zink

Zink coarse powder for analysis suitable for filling of reductors, particle size about 0.3- 1.5 mm (14-50 mesh ASTM) EMSURE&#174; Reag. Ph Eur

Supelco

1.08756

Zink

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

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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