| Identification | More | [Name]
COBALT(II) BROMIDE | [CAS]
7789-43-7 | [Synonyms]
COBALT(+2)BROMIDE
COBALT BROMIDE
COBALT(II) BROMIDE
COBALTOUS BROMIDE
Cobalt bromide (CoBr2)
cobalt(ii)bromideanhydrous
cobaltbromide(cobr2)
cobaltdibromide
CoBr2
Mancobride mancanese
COBALTOUS BROMIDE HYDRATE
COBALT(II) BROMIDE, ANHYDROUS, 99.99%
Cobalt(II)bromide,ultradry,99.99%(metalsbasis)
COBALT BROMIDE, ANHYDROUS REAGENT
cobalt(ii) bromide, ultra dry
Cobalt(II) bromide, anhydrous, Co 26.6% min
Cobaltous bromide: (Cobalt(II) bromide)
Cobaltous bromide anhydrous
Cobalt(II) dibromide | [EINECS(EC#)]
232-166-7 | [Molecular Formula]
Br2Co | [MDL Number]
MFCD00016017 | [Molecular Weight]
218.74 | [MOL File]
7789-43-7.mol |
| Chemical Properties | Back Directory | [Appearance]
Reddish violet crystalline powder | [Melting point ]
678°C | [density ]
4.909 g/mL at 25 °C(lit.)
| [solubility ]
acetone: soluble(lit.) | [form ]
beads
| [color ]
Green | [Specific Gravity]
4.909 | [Water Solubility ]
Soluble in water. Soluble in methyl acetate, ether, alcohol, acetone. | [Sensitive ]
Hygroscopic | [Merck ]
14,2435 | [Exposure limits]
ACGIH: TWA 0.02 mg/m3 | [CAS DataBase Reference]
7789-43-7(CAS DataBase Reference) | [EPA Substance Registry System]
Cobalt bromide (7789-43-7) |
| Safety Data | Back Directory | [Hazard Codes ]
T,Xn | [Risk Statements ]
R45:May cause cancer.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
R42/43:May cause sensitization by inhalation and skin contact . | [Safety Statements ]
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S22:Do not breathe dust .
S53:Avoid exposure-obtain special instruction before use . | [RIDADR ]
UN 3077 9 / PGIII | [WGK Germany ]
3
| [RTECS ]
GF9595000
| [TSCA ]
Yes | [Hazardous Substances Data]
7789-43-7(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
COBALTOUS BROMIDE(7789-43-7) is a red violet crystalline solid. COBALTOUS BROMIDE(7789-43-7) 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. COBALTOUS BROMIDE(7789-43-7) is used as a catalyst in the production of other chemicals. | [Reactivity Profile]
Acidic salts, such as COBALTOUS 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]. | [Air & Water Reactions]
Water soluble. | [Health Hazard]
SOLID: Irritating to skin and eyes. Harmful if swallowed. | [Fire Hazard]
Not flammable. POISONOUS FUMES ARE PRODUCED WHEN HEATED TO DECOMPOSITION. When heated to decomposition can give off highly toxic fumes of Br. | [Chemical Properties]
Reddish violet crystalline powder | [Chemical Properties]
The 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. | [Uses]
Used in the preparation of a new complex, Co(OESPz), which offers the possibility of intermolecular ferromagnetic interactions.1 | [Preparation]
Cobalt(II) bromide (CoBr2) is on its anhydrous form a green solid that is soluble in water, used primarily as a catalyst in some processes. Cobalt(II) bromide can be formed as a hydrate by the reaction of cobalt hydroxide with hydrobromic acid.
Co (OH) 2 (s)+2HBr (aq)→CoBr2.6H2O(aq) | [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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