Sodium Bromide (NaBr) - High-Purity for Pharma, Water Treatment & Organic Synthesis

Sodium Bromide (CAS No.: 7647-15-6; Molecular Formula: NaBr; Molecular Weight: 102.89 g/mol) is a versatile inorganic compound presented as white crystalline powder or granules. It is easily soluble in water (90.5 g/100ml at 25°C) and slightly soluble in alcohol, with strong hygroscopicity (strict moisture-proof measures required during storage). It is available in multiple purity grades: Industrial grade: ≥99.0% purity; Pharmaceutical grade: ≥99.5% purity (complying with USP/EP standards); Reagent grade: ≥99.9% purity. Core application areas include: Pharmaceutical synthesis: Raw material for antiepileptic/sedative drugs (e.g., phenobarbital) and stabilizer for CT scan contrast agent solutions (sodium iodide mixtures). Industrial water treatment: Bromine-based bactericides/algaecides for cooling towers/swimming pools (reduces carcinogen production compared to chlorine) and corrosion inhibitor for oilfield drilling fluids (inhibits sulfate-reducing bacteria, SRB). Photosensitive industry: Source of bromide ions in traditional photographic film developers. Organic synthesis: Phase transfer catalyst (e.g., in Williamson ether synthesis) and bromination reagent (for producing bromoalkanes like ethyl bromide). Flame retardant additives: Synergistic component with antimony oxide to enhance flame retardancy in plastics/textiles. Packaging options range from 25kg plastic-lined woven bags, 50kg moisture-proof cardboard barrels, 1000kg ton bags, to 500g brown glass reagent bottles. Store in a cool, dry warehouse (relative humidity ≤40%) away from strong acids/oxidants; shelf life is 24 months in sealed packaging.