Zinc bromide

Zinc bromide (ZnBr2, CAS 7699-45-8) is an inorganic zinc salt supplied as odorless white beads. It carries no assigned E-code and is registered under EC 231-718-4. It is also referenced in technical literature as zinc dibromide and zinc(II) bromide.

In pharmaceutical and personal care formulations, zinc bromide functions as an antimicrobial agent by releasing zinc ions that disrupt microbial cell membranes, and as a skin conditioner at controlled concentrations. In industrial and laboratory settings, it acts as a Lewis acid catalyst, activating electrophilic reactions including certain cyclization and condensation processes.

Zinc bromide is available in technical and high-purity grades suitable for pharmaceutical, cosmetic, and industrial applications, with compliance documentation available for REACH-registered supply into the EU. Standard packaging includes multi-layer moisture-resistant bags and drums appropriate for hygroscopic solids. Buyers should confirm grade specifications against Ph.Eur. or in-house quality standards prior to procurement.