Iron pentacarbonyl
| Names | |
|---|---|
| IUPAC name
Pentacarbonyliron(0) | |
| Other names
Pentacarbonyl iron Iron carbonyl | |
| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.033.323 |
PubChem CID |
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| RTECS number |
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| UNII | |
| UN number | 1994 |
CompTox Dashboard (EPA) |
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| Properties | |
| Fe(CO)5 | |
| Molar mass | 195.90 g/mol |
| Appearance | straw-yellow to brilliant orange liquid |
| Odor | musty |
| Density | 1.453 g/cm3 |
| Melting point | −21.0 °C (−5.8 °F; 252.2 K) |
| Boiling point | 103 °C (217 °F; 376 K) |
| Insoluble | |
| Solubility | Soluble in organic solvents slightly soluble in alcohol insoluble in ammonia |
| Vapor pressure | 40 mmHg (30.6 °C) |
Refractive index (nD) |
1.5196 (20 °C) |
| Structure | |
| D3h | |
| trigonal bipyramidal | |
| trigonal bipyramidal | |
| 0 D | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
Very toxic, highly flammable |
| GHS labelling: | |
| NFPA 704 (fire diamond) | |
| Flash point | −15 °C (5 °F; 258 K) |
| 49 °C (120 °F; 322 K) | |
| Explosive limits | 3.7–12.5% |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
25 mg/kg (rat, oral) |
| NIOSH (US health exposure limits): | |
PEL (Permissible) |
none |
REL (Recommended) |
TWA 0.1 ppm (0.23 mg/m3) ST 0.2 ppm (0.45 mg/m3) |
IDLH (Immediate danger) |
0.4 ppm |
| Safety data sheet (SDS) | ICSC 0168 |
| Related compounds | |
Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Iron pentacarbonyl, also known as iron carbonyl, is the compound with formula Fe(CO)5. Under standard conditions Fe(CO)5 is a free-flowing, straw-colored liquid with a pungent odour. Older samples appear darker. This compound is a common precursor to diverse iron compounds, including many that are useful in small scale organic synthesis.