Cobalt bromide anhydrous

Cobalt bromide anhydrous

Cobaltous bromide; Dibromocobalt

CAS 7789-43-7

Chemical Formula CoBr₂

Molecular Weight 218.74 g/mol

Cobalt(II) bromide anhydrous is a green, hygroscopic (water-attracting) solid. It readily forms hydrates when exposed to air, first the hexahydrate (red-purple) and then the dihydrate. Cobalt(II) bromide anhydrous is used as a catalyst in various chemical reactions, particularly in organic synthesis. It also finds applications in wastewater treatment and as a precursor in the production of other cobalt compounds

Industrial Uses

1. Performance Chemicals

  • Organic Synthesis: Cobalt(II) bromide is used as a catalyst in various organic reactions, including the oxidation of fatty acids and hydroxylation of phenols.
  • 5-HMF synthesis: It is also used in other reactions like the synthesis of 5-HMF (a chiral molecule) and in the production of ethylsulfanyl)porphyrazinato)cobalt(II).
  • C-C Coupling Reactions: Anhydrous cobalt(II) bromide is a precursor for catalysts used in carbon-carbon (C-C) coupling reactions, such as cycloadditions, hydrovinylations, and cross-coupling reactions. 
  • Arylzincation of Alkynes: It catalyzes the arylzincation of alkynes using arylzinc iodide complexes, enabling the synthesis of various functionalized styrene derivatives. 
  • Thioacetalisation: Anhydrous cobalt(II) bromide, often dispersed on silica gel, acts as an efficient catalyst for the thioacetalisation of aldehydes and ketones.

Specifications

Assay 98%
Appearance Red to dark purple crystalline powder
Odor Odorless
Boiling Point Decomposes above ~1,000 °C
Melting Point 678°C
Density 4.9 g/cm3
Solubility Soluble in water, ethanol, acetone; forms colored solutions
Viscosity Not applicable
Flash Point Not flammable

Hazard Symbols

Irritants/Sensitisers/Other Hazards
Environmental Hazard

FAQs

1. What is the current price of Cobalt bromide anhydrous in India?
The price of Cobalt bromide anhydrous can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.6301 00 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Cobalt bromide anhydrous in India?
You can purchase Cobalt bromide anhydrous from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Cobalt bromide anhydrous? 
Our minimum order quantity (MOQ) for Cobalt bromide anhydrous is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Cobalt bromide anhydrous supplied by Multichem?
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.