Copper(II) Bromide CuBr2 CAS 7789-45-9

Copper(II) Bromide (CuBr₂) – Versatile Reagent for Synthesis and Catalysis

Basic Information

• Product Name: Copper(II) bromide (Cupric bromide)

• CAS Number: 7789-45-9

• Molecular Formula: Br₂Cu

• Molecular Weight: 223.35 g/mol

• EINECS Number: 232-167-2

• Appearance: Dark grey to black crystalline powder or crystals

• Melting Point: 498°C

• Boiling Point: 900°C

• Density: 4.77 g/mL at 25°C

• Decomposition Temperature: ~900°C

• Solubility: Soluble in water; soluble in alcohol, acetone, and ammonia

• Sensitivity: Hygroscopic – absorbs moisture from air

• Stability: Stable under normal storage, but reacts violently with potassium and alkali metals. Incompatible with moisture.

Overview
Copper(II) bromide is an important inorganic compound widely used in organic synthesis, analytical chemistry, and various industrial applications. It serves as a versatile reagent for bromination reactions, as a catalyst, and as a temperature indicator in certain applications.

Applications

• Analytical reagent: Used in chemical analysis for detection and quantitative determination of various substances.

• Catalyst: Employed in organic synthesis reactions, including oxidation and halogenation processes.

• Brominating agent: Used to introduce bromine atoms into organic molecules, especially in the synthesis of pharmaceuticals and agrochemicals.

• Temperature indicator: Utilized in thermochromic systems due to its color changes with temperature.

• Stabilizer: Acts as an acetylated stabilizer for polyformaldehyde and other polymers.

• Inorganic synthesis: Used in the preparation of other copper compounds and coordination complexes.

Key Properties

• High purity grades available for sensitive analytical and synthetic applications.

• Good solubility in water and polar organic solvents.

• Hygroscopic nature requires careful storage and handling.

• Provides both copper and bromide functionalities in one reagent.

Handling and Storage

• Store in a cool, dry, well-ventilated area, away from moisture and incompatible materials (alkali metals, strong oxidizing agents).

• Keep containers tightly sealed to prevent moisture absorption and caking.

• Use appropriate personal protective equipment (gloves, safety goggles, dust mask) when handling.

• Avoid inhalation of dust and contact with skin and eyes.

• In case of contact, rinse thoroughly with water and seek medical advice if irritation persists.

Packaging
Available in 100 g, 500 g, 1 kg, 5 kg containers, and custom packaging upon request.

Quality Assurance
Each batch is tested for purity, heavy metals, and water content to ensure consistent quality for analytical and industrial use.