Zinc bromide

Zinc bromide (CAS 7699-45-8), commonly abbreviated as ZnBr2, is an inorganic salt sourced for its utility as a catalyst, electrolyte component, and high-density completion fluid across industrial and specialty chemical markets. Buyers in pharmaceuticals, oil field services, and specialty synthesis recognize it as a distinct procurement item from other zinc halides. In oil and gas well completion, ZnBr2 solutions are formulated into high-density clear brine fluids.

These fluids are used to control wellbore pressure without solids. Pharmaceutical manufacturers use it as a precursor or reagent in active ingredient synthesis where a soluble zinc salt is required for specific chemical reactions. In organic synthesis and catalysis, it acts as a Lewis acid catalyst for Friedel-Crafts reactions and other electrophilic processes. Personal care and biocide formulators also incorporate it for preservation and surface-active functions.

These functions are essential in specific antimicrobial formulations. Zinc bromide is supplied as a white crystalline powder or as concentrated aqueous solution, with solution concentrations typically ranging to meet oilfield brine density specifications. Standard grades include technical and pharmaceutical-grade material, with the latter conforming to USP or BP specifications. Packaging options range from laboratory quantities to bulk industrial supply depending on the application grade.