COBALT(II) BROMIDE

COBALT(II) BROMIDE Basic information
Product Name:COBALT(II) BROMIDE
Synonyms:COBALT(II) BROMIDE;COBALT BROMIDE;COBALT(+2)BROMIDE;COBALTOUS BROMIDE;Cobalt(Ⅱ) Bromide, Anhydrous;Cobalt(II) bromide, anhydrous≥ 98% (Metal basis);Cobalt bromide (CoBr2);cobalt(ii)bromideanhydrous
CAS:7789-43-7
MF:Br2Co
MW:218.74
EINECS:232-166-7
Product Categories:Cobalt Salts;CobaltMetal and Ceramic Science;Crystal Grade Inorganics;Metal and Ceramic Science;Salts;27: Co;Beaded Materials;Cobalt;Cobalt Salts;Crystal Grade Inorganics;Materials Science;Metal and Ceramic Science
Mol File:7789-43-7.mol
COBALT(II) BROMIDE Structure
COBALT(II) BROMIDE Chemical Properties
Melting point 678°C
density 4.909 g/mL at 25 °C(lit.)
solubility acetone: soluble(lit.)
form beads
color Green
Specific Gravity4.909
Water Solubility Soluble in water. Soluble in methyl acetate, ether, alcohol, acetone.
Sensitive Hygroscopic
Merck 14,2435
Exposure limitsACGIH: TWA 0.02 mg/m3
CAS DataBase Reference7789-43-7(CAS DataBase Reference)
EPA Substance Registry SystemCobalt bromide (7789-43-7)
Safety Information
Hazard Codes T,Xn
Risk Statements 45-20/21/22-36/37/38-42/43
Safety Statements 36-45-36/37/39-26-22-53
RIDADR UN 3077 9 / PGIII
WGK Germany 3
RTECS GF9595000
TSCA Yes
Hazardous Substances Data7789-43-7(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
COBALT(II) BROMIDE Usage And Synthesis
Chemical PropertiesReddish violet crystalline powder
Chemical PropertiesThe green anhydrous salt is prepared by dehydration of the red hexahydrate or by the action of bromine on heated cobalt. It is very soluble in water and soluble in many polar organic solvents; it deliquesces in moist air to a red solution. The hexahydrate crystallizes from aqueous solution at room temperature; it melts at 100°, evolving water and forming the purple dihydrate.
UsesCobalt(II) bromide is used as a catalyst in organic synthesis. It is used as a precursor in the production of ethylsulfanyl)porphyrazinato)cobalt(II), which gives the possibility of intermolecular ferromagnetic interactions.
UsesUsed in the preparation of a new complex, Co(OESPz), which offers the possibility of intermolecular ferromagnetic interactions.1
General DescriptionCOBALT(II) BROMIDE is a red violet crystalline solid. COBALT(II) BROMIDE is soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. COBALT(II) BROMIDE is used as a catalyst in the production of other chemicals.
Air & Water ReactionsWater soluble.
Reactivity ProfileAcidic salts, such as COBALT(II) BROMIDE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions. When heated to decomposition can give off highly toxic fumes of Br [USCG, 1999].
Health HazardSOLID: Irritating to skin and eyes. Harmful if swallowed.
Fire HazardNot flammable. POISONOUS FUMES ARE PRODUCED WHEN HEATED TO DECOMPOSITION. When heated to decomposition can give off highly toxic fumes of Br.
Purification MethodsCrystallise 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.]
COBALT(II) BROMIDE Preparation Products And Raw materials
Preparation Products3-(2-METHYL-1,3-THIAZOL-4-YL)BENZOIC ACID-->3-(2-BROMOACETYL)BENZOIC ACID-->ETHYL 4-ACETYLBENZOATE-->3-ACETYLBENZONITRILE-->3-ACETYLBENZOIC ACID-->3-(2-Bromoacetyl)benzonitrile
Nickel chloride Cobalt sulfate heptahydrate Cobalt(II) hydroxide trisodium nitride COBALT(III) FLUORIDE Cobaltous nitrate hexahydrate COBALT(II) SULFATE HYDRATE COBALT(II) SULFATE HYDRATE Potassium dichromate COBALT(II) BROMIDE,COBALT(II) BROMIDE HEXAHYDRATE,COBALT(II) BROMIDE HEXAHYDRATE, 99.5%,COBALT (II) BROMIDE, HYDROUS Cobalt chloride IRON (II) FLUORIDE Cobalt oxide Cuprous oxide COBALT(II) BROMIDE 6 H2O,COBALT(II) BROMIDE HYDRATE COBALT(II) BROMIDE DIBROMOBIS(TRIPHENYLPHOSPHINE) COBALT(II) Cobalt

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