Name | octacarbonyldicobalt |
Synonyms | cobalt Co2(CO)8 cobaltous methanone Cobalt carbonyl carbon monoxide octacarbonyldicobalt carbonyl,tetra-cobal OCTACARBONYLDICOBALT Cobalt tetracarbonyl dimer Cobalt carbonyl (Co2(CO)8) Cobalt, di-mu-carbonylhexacarbonyldi- Cobalt,di-μ-carbonylhexacarbonyldi-,(Co-Co) Cobalt, di-mu-carbonylhexacarbonyldi-, (Co-Co) |
CAS | 10210-68-1 |
EINECS | 233-514-0 |
InChI | InChI=1/8CO.2Co/c8*1-2;;/q8*-1;2*+2/rC8Co2O8/c11-1-9(2-12,3-13,4-14)10(5-15,6-16,7-17)8-18/q-4 |
Molecular Formula | C8Co2O8+4 |
Molar Mass | 341.95 |
Density | 1.81 |
Melting Point | 51-52 °C |
Boling Point | 52°C |
Flash Point | -13 °C |
Water Solubility | Insoluble in water. Soluble in alcohol, ether and carbon disulfideSoluble in ether, naphtha and carbon disulfide. Slightly soluble in alcohol. Insoluble in water. |
Vapor Presure | 9.333-200Pa at 15-25℃ |
Appearance | crystal |
Specific Gravity | 1.73 |
Color | dark orange |
Exposure Limit | TLV-TWA: 0.1 mg/m3 as Co (ACGIH)PEL-TWA: 0.1 mg/m3 as Co (OSHA). |
Merck | 13,3112 |
Storage Condition | 2-8°C |
Sensitive | Air Sensitive |
Risk Codes | R11 - Highly Flammable R22 - Harmful if swallowed R40 - Limited evidence of a carcinogenic effect R43 - May cause sensitization by skin contact R48/20 - R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R62 - Possible risk of impaired fertility R26 - Very Toxic by inhalation |
Safety Description | S36/37 - Wear suitable protective clothing and gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S28 - After contact with skin, wash immediately with plenty of soap-suds. |
UN IDs | UN 3190 4.2/PG 2 |
WGK Germany | 3 |
RTECS | GG0300000 |
FLUKA BRAND F CODES | 23-25 |
TSCA | No |
HS Code | 29319090 |
Hazard Class | 4.1 |
Packing Group | II |
Toxicity | LD50 in mice, rats (mg/kg): 377.7, 753.8 by gavage (Spiridonova, Shabalina) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Overview | Cobalt carbonyl is an important carbonyl complex and an important catalyst. Cobalt carbonyl is used as a hydroformylation catalyst. Generally, the temperature is 130 ℃, and the CO partial pressure is> 3MPa. There are many ways to synthesize cobalt carbonyl, but most of them require harsh conditions of high temperature and high pressure or use highly toxic reagents such as potassium cyanide (KCN) and sodium cyanide (NaCN). |
Application | Cobalt carbonyl is an important compound, mainly used as a catalyst for the carbonylation reaction of organic compounds, such as the synthesis of phenylacetic acid and acetic acid catalyst. It is also an important reagent for the synthesis of other mononuclear and polynuclear carbonyl complexes. |
Use | Solid-phase reaction complexing agent, catalyst, can be used for hydroformylation reaction, hydrogenation reaction, hydrosilylation reaction, isomerization reaction, carboxylation reaction, carbonylation reaction, and can also be used as a catalyst for olefin polymerization to replace titanium trichloride. Gasoline antiknock agent. Preparation of high purity cobalt salts. |
category | toxic substances |
toxicity classification | highly toxic |
acute toxicity | oral administration-rat LD50 754 mg/kg; Oral administration-mouse LD50: 378 mg/kg |
flammability hazard characteristics | combustible, the fire field discharges spicy and irritating smoke containing cobalt oxide |
storage and transportation characteristics | warehouse is low temperature, ventilated and dry; Store separately from food raw materials |
fire extinguishing agent | water, carbon dioxide, foam, dry powder |
occupational standard | TWA 0.1 mg (cobalt)/m3 |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |