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COBALT(II) BROMIDE HYDRATE

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COBALT(II) BROMIDE HYDRATE Basic information

Product Name:
COBALT(II) BROMIDE HYDRATE
Synonyms:
  • Cobalt(II) broMide hydrate 100GR
  • Cobalt bromide hydrate
  • COBALT(II) BROMIDE 6 H2O
  • COBALT(II) BROMIDE HYDRATE
  • COBALT(II) BROMIDE HYDRATE ISO 9001:2015 REACH
  • OBALT(II) BROMIDE HYDRATE
  • Cobalt(ll) bromide hydrate
  • Cobalt(II) bromide xhydrate
CAS:
85017-77-2
MF:
Br2CoH2O
MW:
236.76
EINECS:
678-761-9
Product Categories:
  • metal halide
Mol File:
85017-77-2.mol
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COBALT(II) BROMIDE HYDRATE Chemical Properties

Melting point:
47-48°C
Density 
2,462 g/cm3
form 
Crystals
Specific Gravity
~2.462
color 
Violet
Water Solubility 
Soluble in water.
Sensitive 
Hygroscopic
Merck 
14,2435
Exposure limits
ACGIH: TWA 0.02 mg/m3
InChIKey
MOTZAWYGLXXRSO-UHFFFAOYSA-L
CAS DataBase Reference
85017-77-2
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Safety Information

Hazard Codes 
Xn
Risk Statements 
20/21/22-36/37/38
Safety Statements 
26-28-36/37/39-45
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
3
RTECS 
GF9595000
3
TSCA 
Yes
HS Code 
28275900

MSDS

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COBALT(II) BROMIDE HYDRATE Usage And Synthesis

Chemical Properties

Red violet crystal.

Uses

Hygrometers, catalystsCobalt(II) bromide hydrate is mainly used as a catalyst in organic synthesis, like C-metal, C-heteroatom and C-C bond formations, addition to unsaturated bonds, cyclizations, polymerization, oxidations reductions and carbonylations. It reacts with ammonia to form coordination compound bromopentaamminecobalt(III) bromide. It reacts with triphenylphosphine and form complexes of cobalt(II) bromide, which used as a catalyst in organic synthesis.

Purification Methods

Crystallise it from water (1mL/g) by partial evaporation in a desiccator. The anhydrous salt is soluble in EtOH, Me2CO, MeOAc to form blue-coloured solutions. [Glemser in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1517 1965.]

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