12078-25-0
Dicarbonylcyclopentadienylcobalt
CAS: 12078-25-0
Molecular Formula: C7H5CoO25*
12078-25-0 - Names and Identifiers
12078-25-0 - Physico-chemical Properties
| Molecular Formula | C7H5CoO25* |
| Molar Mass | 180.05 |
| Density | 1.35 |
| Melting Point | -22 °C |
| Boling Point | 139-140°C710mm Hg(lit.) |
| Flash Point | 80°F |
| Water Solubility | Insoluble in water. Soluble in common organic solvents. |
| Appearance | liquid |
| Specific Gravity | 1.35 |
| Color | dark red |
| Storage Condition | 2-8°C |
| Sensitive | Air Sensitive |
| Refractive Index | 1.599-1.602 |
12078-25-0 - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R10 - Flammable R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R42/43 - May cause sensitization by inhalation and skin contact. R53 - May cause long-term adverse effects in the aquatic environment R68 - Possible risk of irreversible effects R40 - Limited evidence of a carcinogenic effect |
| Safety Description | S23 - Do not breathe vapour. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S38 - In case of insufficient ventilation, wear suitable respiratory equipment. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S28A - S16 - Keep away from sources of ignition. |
| UN IDs | UN 1992 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-23 |
| HS Code | 29319090 |
| Hazard Class | 6.1 |
| Packing Group | II |
12078-25-0 - Reference Information
| use | catalyst for alkyne cyclotrimerization. |
| production method | 1. add 31 ml (0.38 mol) of now-steamed cyclopentadiene, 60 ml of dry methylene chloride and 25g (0.073 mol) of octakyl drill to a 200 ml flask equipped with a reflux and mercury bubble meter. Flush with nitrogen and wrap the system with aluminum foil to avoid light. After heating and refluxing on the steam for 2 days, the dichloromethane is evaporated with a water pump, and 24.6 grams (93%) of the product is continuously distilled, which is a black and red liquid |
| NIST chemical information | The information is provided by: webbook.nist.gov (external link) |
Last Update：2024-04-10 22:29:15
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