Isobutanol
| Names | |
|---|---|
| Preferred IUPAC name
2-Methylpropan-1-ol | |
| Other names
Isobutyl alcohol IBA 2-Methyl-1-propanol 2-Methylpropyl alcohol Isopropylcarbinol | |
| Identifiers | |
3D model (JSmol) |
|
| 1730878 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.001.044 |
| EC Number |
|
| 49282 | |
| KEGG | |
PubChem CID |
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| RTECS number |
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| UNII | |
| UN number | 1212 |
CompTox Dashboard (EPA) |
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| |
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| Properties | |
| C4H10O | |
| Molar mass | 74.122 g/mol |
| Appearance | Colorless liquid |
| Odor | sweet, musty |
| Density | 0.802 g/cm3, liquid |
| Melting point | −108 °C (−162 °F; 165 K) |
| Boiling point | 107.89 °C (226.20 °F; 381.04 K) |
| 8.7 mL/100 mL | |
| log P | 0.8 |
| Vapor pressure | 9 mmHg (20°C) |
Refractive index (nD) |
1.3959 |
| Viscosity | 3.95 cP at 20 °C |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H226, H315, H318, H335, H336 | |
| P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P332+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | 28 °C (82 °F; 301 K) |
| 415 °C (779 °F; 688 K) | |
| Explosive limits | 1.7–10.9% |
| Lethal dose or concentration (LD, LC): | |
LDLo (lowest published) |
3750 mg/kg (rabbit, oral) 2460 mg/kg (rat, oral) |
| NIOSH (US health exposure limits): | |
PEL (Permissible) |
TWA 100 ppm (300 mg/m3) |
REL (Recommended) |
TWA 50 ppm (150 mg/m3) |
IDLH (Immediate danger) |
1600 ppm |
| Safety data sheet (SDS) | ICSC 0113 |
| Related compounds | |
Related butanols |
1-Butanol sec-Butanol tert-Butanol |
Related compounds |
Isobutyraldehyde Isobutyric acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Isobutanol (IUPAC nomenclature: 2-methylpropan-1-ol) is an organic compound with the formula (CH3)2CHCH2OH (sometimes represented as i-BuOH). This colorless, flammable liquid with a characteristic smell is mainly used as a solvent either directly or as its esters. Its isomers are 1-butanol, 2-butanol, and tert-butanol, all of which are important industrially.