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230022

Sigma-Aldrich

Zinkbromid

99.999% trace metals basis

Synonym(e):

Zinc dibromide

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€ 84,50
50 G
€ 296,00

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10 G
€ 84,50
50 G
€ 296,00

About This Item

Lineare Formel:
ZnBr2
CAS-Nummer:
Molekulargewicht:
225.20
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352302
eCl@ss:
38150410
PubChem Substanz-ID:
NACRES:
NA.23

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Qualitätsniveau

Assay

99.999% trace metals basis

Form

powder and chunks

Eignung der Reaktion

reagent type: catalyst
core: zinc

Verunreinigungen

≤15.0 ppm Trace Metal Analysis

bp

~670 °C/1 atm (lit.)

mp (Schmelzpunkt)

394 °C (lit.)

Löslichkeit

diethyl ether: slightly soluble(lit.)
ethanol: very soluble(lit.)

SMILES String

Br[Zn]Br

InChI

1S/2BrH.Zn/h2*1H;/q;;+2/p-2

InChIKey

VNDYJBBGRKZCSX-UHFFFAOYSA-L

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Anwendung

Zinc bromide supported on silica or montmorillonite can be used as a selective catalyst for the bromination of aromatic substrates.

It can be used as starting material to prepare poly(ethylene oxide)/ zinc salt systems, which can be used as polymer electrolytes.

Itcan also be used to prepare ZnO nanoparticles.

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1

Lagerklassenschlüssel

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Kunden haben sich ebenfalls angesehen

Franz, A.K. Woerpel, K.A.
Journal of the American Chemical Society, 121, 949-949 (1999)
Frederic G Buono et al.
Organic letters, 10(23), 5325-5328 (2008-11-05)
Kinetic studies using reaction calorimetry were conducted under synthetically relevant conditions to study the effect of additives in the cyanation of bromobenzene catalyzed by palladium complexes. This work demonstrates that the addition of a catalytic amount of ZnBr(2) facilitates the
Toshiaki Sasada et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(34), 9385-9394 (2011-07-23)
The [5+1] annulation of enamidines, which were prepared from functionalized silanes, organolithium compounds and two nitriles, with N,N-dimethylformamide dialkyl acetals as the C1 unit is described, leading to the synthesis of tri- and tetrasubstituted pyrimidine derivatives under catalyst- and solvent-free
Isabelle Aillaud et al.
Molecules (Basel, Switzerland), 15(11), 8144-8155 (2010-11-13)
A methodological study devoted to the Mannich-like multicomponent synthesis of the antiplatelet agent (±)‑clopidogrel (7) and the ethyl ester analogue 6 is described. The process involves the formation of 2-chlorophenyl zinc bromide (2) and its subsequent reaction with an alkyl
Direct synthesis of alkynylstannanes: ZnBr2 catalyst for the reaction of tributyltin methoxide and terminal alkynes.
Kensuke Kiyokawa et al.
Angewandte Chemie (International ed. in English), 50(44), 10393-10396 (2011-09-15)

Artikel

Colloidal quantum dots (CQDs) are semiconducting crystals of only a few nanometers (ca. 2–12 nm) coated with ligand/surfactant molecules to help prevent agglomeration.

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/449/386/product-dating-information-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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