Characteristic

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).

Chemical formula：ZnBr₂

Molar mass：225.198 g/mol

Appearance：white crystalline powder hygroscopic

Density：4.20 g/cm³ (20 °C)

                4.22 g/cm³ (25 °C)

Melting point：394 °C (741 °F; 667 K)

Boiling point：697 °C (1,287 °F; 970 K)

Solubility in water：311 g/100 mL (0 °C)

                                 447 g/100 mL (20 °C)

                                 538 g/100 mL (100 °C)

Solubility：very soluble in alcohol, ether, acetone, tetrahydrofuran

Refractive index (nD)：1.5452

Application

Used as lewis acid in organic synthesis.For example, in the reaction of synthetic menthol, zinc bromide ACTS as lewis acid to catalyze the reaction of citronella aldehyde to carbonyl ene to produce isopolyl alcohol.

Used in photography, medicine, radiation protection and manufacturing of artificial fiber.