[B22031] CAS 7646-79-9 | Cobalt(II) chloride, anhydrous, 97%

CAS : 7646-79-9
UN# : UN3077
MDL : MFCD00010938
Hazard Class : 9
EINECS : 231-589-4
Packing Group : III

Chemical Properties

Formula : Cl2Co
Formula weight : 129.84
Melting Point : 735°
Boiling Point : 1049°
Density : 3.367
Sensitivity : Hygroscopic. Ambient temperatures.
Form : Powder
Solubility : Freely soluble in water and methanol. Soluble in alcohol, acetone, ether, glycerol, and pyridine.

Applications

Cobalt(II) chloride is used in humidity indicator in weather instruments. In the anhydrous form, it finds use in electroplating of cobalt, in organic chemistry and is a precursor to cobaltocene, (bis(cyclopentadienyl)cobalt(II), which is a good reducing agent. It also serves as a Lewis acid. Cobalt chloride is an indicator for water in desiccants, owing to the reversible hydration/dehydration coupled with distinct color change. Cobalt chloride is useful for producing invisible ink as it turns blue when heated and becomes invisible once it gets cooled. Cobalt(II) chloride catalyzes cross coupling of aryl halides or vinyl halides with aryl grignard reagents in excellent yields.

Notes

Hygroscopic. Incompatible with strong oxidizing agents.Other References :
Merck : 14,2437
UN# : UN3077

GHS Hazard and Precautionary Statements

Hazard Statements : H334-H350-H360-H317-H341-H400-H410-H302May cause allergy or asthma symptoms or breathing difficulties if inhaled.May cause cancer.May damage fertility or the unborn child.May cause an allergic skin reaction.Suspected of causing genetic defects.Very toxic to aquatic life.Very toxic to aquatic life with long lasting effects.Harmful if swallowed.
Precautionary Statements : P273-P201-P308+P313-P501aAvoid release to the environment.Obtain special instructions before use.IF exposed or concerned: Get medical advice/attention.Dispose of contents/container in accordance with local/regional/national/international regulations.
위험 문구 : 49-60-22-42/43-68-50/53May cause cancer by inhalation.May impair fertility.Harmful if swallowed.May cause sensitization by inhalation and skin contact.Possible risk of irreversible effects.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
안전 문구 : 53-45-60-61Avoid exposure – obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).This material and its container must be disposed of as hazardous wasteAvoid release to the environment. Refer to special instructions/safety data sheets.