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Cobalt(II) bromide

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Identification
Molecular formula
CoBr2
CAS number
7789-43-7
IUPAC name
dibromocobalt
State
State

At room temperature, Cobalt(II) bromide is typically found in a solid state.

Melting point (Celsius)
678.00
Melting point (Kelvin)
951.00
Boiling point (Celsius)
927.00
Boiling point (Kelvin)
1 200.00
General information
Molecular weight
218.75g/mol
Molar mass
218.7450g/mol
Density
4.9000g/cm3
Appearence

The compound appears as red to green crystals. It exhibits a crystalline texture and its color can depend on the hydration state.

Comment on solubility

Solubility of Dibromocobalt

Dibromocobalt, represented by the chemical formula CoBr2, showcases interesting solubility characteristics that are significant in various chemical contexts. Here are some key points to consider:

  • It is generally considered to be soluble in polar solvents, especially water, due to its ionic nature.
  • As a typical salt, Dibromocobalt dissociates into cobalt cations (Co2+) and bromide anions (Br-) in solution, a process highlighted by the reaction:

CoBr2 (s) → Co2+ (aq) + 2 Br- (aq)

  • This dissociation contributes to its conductivity in solution, making it a useful reagent in various applications.
  • The solubility can be affected by temperature, with higher temperatures often increasing solubility for ionic compounds.
  • Conversely, the presence of other ions in solution can lead to precipitation, reducing its apparent solubility.

In summary, while Dibromocobalt is soluble in water and some polar solvents, factors such as temperature and the ionic environment can significantly influence its solubility behavior. Understanding these factors is crucial for its practical application in chemistry.

Interesting facts

Interesting Facts About Dibromocobalt

Dibromocobalt is a fascinating chemical compound that has garnered the interest of chemists and researchers alike. Below are some intriguing aspects of dibromocobalt that showcase its unique properties and applications:

  • Cobalt's Versatility: Cobalt is an essential element in various industries, particularly in the production of alloys and batteries. Dibromocobalt, as a cobalt salt, plays a role in some of these applications.
  • Coordination Chemistry: Dibromocobalt is often studied in the field of coordination chemistry. This area explores the interactions of transition metals with ligands, providing insights into electronic structures and chemical bonding.
  • Potential Catalytic Applications: Compounds of cobalt, including dibromocobalt, can potentially act as catalysts in chemical reactions, particularly in organic synthesis. This property makes them valuable in developing new chemical processes.
  • Research Interest: Dibromocobalt continues to be a subject of interest in scientific research due to its unique characteristics. Studies often explore its reactivity and interactions with other compounds, leading to discoveries in material science.
  • Color Changes: The presence of bromine in dibromocobalt may impart specific color changes during reactions or in different environments, providing visual cues that are useful in chemical education and research.

In conclusion, dibromocobalt stands out as more than just a simple transition metal compound. Its implications in various fields, particularly in coordination chemistry and catalysis, make it a valuable subject for ongoing scientific exploration.

Synonyms
7789-43-7
Cobalt dibromide
cobalt (II) bromide
HSDB 998
UNII-7M7RX75BAL
EINECS 232-166-7
7M7RX75BAL
Cobalt bromide (ous)
Cobaltum Bromatum
232-166-7
cobaltbromide
cobaltous bromide
Cobalt bromide
Dibromocobalt
Cobalt(II) bromide, anhydrous
cobalt(II)bromide
Cobalt(II) bromide, 99%
Cobalt(II) bromide, ultra dry
FC29881
12789-07-0
CS-0158652
EN300-6492279
Q420300
Cobalt(II) bromide, ultra dry, 99.99% (metals basis)
Cobalt(II) bromide, anhydrous, beads, -10 mesh, 99.99% trace metals basis