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230022

Sigma-Aldrich

Zinc bromide

99.999% trace metals basis

Sinonimo/i:

Zinc dibromide

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10 G
125,00 €
50 G
410,00 €

125,00 €


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Cambia visualizzazione
10 G
125,00 €
50 G
410,00 €

About This Item

Formula condensata:
ZnBr2
Numero CAS:
Peso molecolare:
225.20
Numero CE:
Numero MDL:
Codice UNSPSC:
12352302
eCl@ss:
38150410
ID PubChem:
NACRES:
NA.23

125,00 €


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Livello qualitativo

Saggio

99.999% trace metals basis

Stato

powder and chunks

Impiego in reazioni chimiche

reagent type: catalyst
core: zinc

Impurezze

≤15.0 ppm Trace Metal Analysis

P. ebollizione

~670 °C/1 atm (lit.)

Punto di fusione

394 °C (lit.)

Solubilità

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

Stringa SMILE

Br[Zn]Br

InChI

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

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Applicazioni

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.

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

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

Codice della classe di stoccaggio

8A - Combustible corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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


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Certificati d'analisi (COA)

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I clienti hanno visto anche

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1 of 3

Franz, A.K. Woerpel, K.A.
Journal of the American Chemical Society, 121, 949-949 (1999)
Yasuhiro Inui et al.
Chemical & pharmaceutical bulletin, 57(10), 1158-1160 (2009-10-06)
Asymmetric intermolecular hydroacylation between salicylaldehyde (1) and 1,5-hexadiene (2) using a combination of [RhCl(C(8)H(14))(2)](2) (0.10 eq), (S)-BINAP (0.10 eq), and ZnBr(2) (0.20 eq) afforded an enantiomerically enriched hydroacylated product iso-3 of 84% ee, along with an achiral product normal-3.
J R Baker et al.
Organic letters, 9(1), 45-48 (2006-12-29)
[reaction: see text] A key structural feature of the Neocarzinostatin chromophore is a reactive epoxydiyne. We present here a new method for the preparation of epoxydiynes by the addition of an allenyl zinc bromide to a propargylic ketone.
Fernando Ferreira et al.
Nucleosides, nucleotides & nucleic acids, 24(5-7), 1009-1013 (2005-10-27)
An oligonucleotide protected with N-(trimethylsilyloxycarbonyl) (Teoc) and P-(trimethylsilylethanol) (Tse) groups was synthesized and deprotected by a single ZnBr2 treatment. Finally it was released from the solid support by cleavage of a disulfide linkage with TCEP. The olgonucleotide was obtained without
Yu Sung Chun et al.
Organic letters, 11(15), 3414-3417 (2009-07-04)
The in situ generated Blaise reaction intermediate, a zinc bromide complex of beta-enaminoester, reacts with various unactivated terminal alkynes and an internal alkyne under mild conditions to afford alpha-vinylated beta-enaminoesters in good to excellent yields.

Articoli

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.

Domande

1–2 di 2 domande  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta
    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

      Utile?

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

    1 risposta
    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

      Utile?

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