Overview
Copper(II) bromide (CuBr₂) is an inorganic compound consisting of copper and bromine. It is widely utilized in industrial and laboratory settings due to its role as a brominating agent and catalyst. The compound typically appears as a black or dark brown crystalline powder, though its color can vary slightly based on hydration levels and impurities. In B2B contexts, copper(II) bromide is primarily sourced by chemical manufacturers, pharmaceutical companies, and research institutions. Its reactivity and stability under controlled conditions make it valuable for specialized chemical processes, though handling requires adherence to safety protocols due to its corrosive nature.
Physical and Chemical Properties
Copper(II) bromide exhibits a high density of 4.71 g/cm³ and melts at 498°C, decomposing before reaching a boiling point. It is hygroscopic, meaning it readily absorbs moisture from the air, which can affect its handling and storage requirements. The compound dissolves well in polar solvents like water, ethanol, and acetone, facilitating its use in solution-based reactions. Chemically, CuBr₂ acts as a moderate oxidizer and reacts vigorously with strong reducing agents. Its bromine content makes it effective for bromination reactions in organic synthesis. These properties necessitate careful management to prevent unintended reactions, particularly in industrial-scale applications.
Main Applications
The primary use of copper(II) bromide is in organic synthesis, where it serves as a brominating agent for aromatic compounds and alkenes. It is also employed as a catalyst in polymerization reactions and cross-coupling processes, such as the Ullmann reaction. Additionally, CuBr₂ finds niche applications in wood preservation and as a component in photographic developers. In the pharmaceutical industry, it is used to synthesize intermediates for active pharmaceutical ingredients (APIs). Its versatility in introducing bromine atoms into molecular structures makes it indispensable for producing specialty chemicals and advanced materials.
Safety and Storage
Copper(II) bromide poses significant health hazards, including skin and eye irritation, respiratory distress if inhaled, and toxicity if ingested. Proper personal protective equipment (PPE)—such as gloves, goggles, and respirators—must be worn during handling. Spills should be neutralized with appropriate absorbents and disposed of as hazardous waste. Storage requires airtight containers in cool, dry environments, segregated from reducing agents and acids. Industrial facilities should implement secondary containment measures to prevent environmental contamination. Regulatory compliance with OSHA, REACH, or local safety standards is mandatory for bulk storage and transportation.
B2B Procurement Guide
When procuring copper(II) bromide, buyers should prioritize suppliers with ISO or GMP certifications to ensure consistent quality. Key specifications include purity (typically 98–99%), particle size, and moisture content. Bulk orders (25 kg drums or palletized bags) often offer cost advantages but require verification of shelf-life and storage compatibility. Procurement teams should request Safety Data Sheets (SDS) and batch analysis certificates. Regional pricing varies based on bromine market trends and logistics; sourcing from specialized chemical distributors or direct manufacturers can mitigate supply chain risks. Lead times may extend during peak demand, so advance planning is advisable.
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