CAS 7699-45-8 Zinc bromide - Catalysts / Alfa Chemistry

Description

Zinc bromide (ZnBr2) is an inorganic compound with the chemical formula ZnBr2. It is a colourless salt that shares many properties with zinc chloride (ZnCl2), namely a high solubility in water forming acidic solutions, and solubility in organic solvents. It is hygroscopic and forms a dihydrate ZnBr2 · 2H₂O.

Synonyms

Dibromozinc

IUPAC Name

Zinc;dibromide

Molecular Weight

225.2

Molecular Formula

Br2Zn

Canonical SMILES

[Zn+2].[Br-].[Br-]

InChI

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

InChI Key

VNDYJBBGRKZCSX-UHFFFAOYSA-L

Boiling Point

697 °C

Melting Point

394 °C

Flash Point

650 °C

Purity

99%+

Density

4.22 g/cm³

Solubility

Soluble in alcohol, ether, acetone and tetrahydrofuran

Appearance

White to pale cream beads

Storage

Store below +30 °C

Complexity

Covalently-Bonded Unit Count

Exact Mass

223.76377

H-Bond Acceptor

Heavy Atom Count

LogP

1.6887

Monoisotopic Mass

221.76582

Odor

Odorless

Refractive Index

1.5452

Stability

Stable. Forms explosive mixtures with sodium and potassium. Protect from moisture.

Topological Polar Surface Area

0 Å²

UNII

OO7ZBU9703

UN Number

3077

Application

Zinc bromide is a white crystalline powder prepared by dissolving zinc carbonate in hydrobromic acid.

Zinc chloride (ZnCl2) is a white granular crystal made by the action of hydrochloric acid on zinc.

Zinc iodide (ZnI2) is a white powder made by dissolving zinc in ionic acid. All of the zinc halides are soluble in water, alcohol, and ether. They were all used as halides for the collodion emulsion processes.

March 7, 2023

An efficient catalyst

Zinc bromide is the best catalyst for stereospecific and regioselective reactions of cyclopropane and carbonyl compounds.