Names | |
---|---|
Preferred IUPAC name
2-Ethylhexan-1-ol[1] | |
Other names
isooctyl alcohol, 2-ethylhexanol
| |
Identifiers | |
3D model (JSmol)
|
|
1719280 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.002.941 |
EC Number |
|
KEGG | |
MeSH | 2-ethylhexanol |
PubChem CID
|
|
UNII | |
CompTox Dashboard (EPA)
|
|
| |
| |
Properties | |
CH3CH2CH2CH2CH(CH2CH3)CH2OH | |
Molar mass | 130.231 g·mol−1 |
Appearance | Colourless liquid |
Density | 833 mg/mL |
Melting point | −76 °C (−105 °F; 197 K) |
Boiling point | 180 to 186 °C; 356 to 367 °F; 453 to 459 K |
log P | 2.721 |
Vapor pressure | 30 Pa (at 20 °C) |
Refractive index (nD)
|
1.431 |
Thermochemistry | |
Heat capacity (C)
|
317.5 J/(K·mol) |
Std molar
entropy (S⦵298) |
347.0 J/(K·mol) |
Std enthalpy of
formation (ΔfH⦵298) |
−433.67–−432.09 kJ/mol |
Std enthalpy of
combustion (ΔcH⦵298) |
−5.28857–−5.28699 MJ/mol |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
|
Mildly toxic |
GHS labelling: | |
Danger | |
H302, H312, H315, H318, H335 | |
P261, P280, P305+P351+P338 | |
Flash point | 81 °C (178 °F; 354 K) |
290 °C (554 °F; 563 K) | |
Explosive limits | 0.88–9.7% |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
|
|
NIOSH (US health exposure limits): | |
PEL (Permissible)
|
none[2] |
REL (Recommended)
|
TWA 50 ppm (270 mg/m3) (skin)[2] |
IDLH (Immediate danger)
|
N.D.[2] |
Related compounds | |
Related alkanol
|
Propylheptyl alcohol |
Related compounds
|
|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
2-Ethylhexanol (abbreviated 2-EH) is an organic compound with the chemical formula CH3CH2CH2CH2CH(CH2CH3)CH2OH. It is a branched, eight-carbon chiral alcohol. It is a colorless liquid that is poorly soluble in water but soluble in most organic solvents. It is produced on a large scale (>2,000,000,000 kg/y) for use in numerous applications such as solvents, flavors, and fragrances and especially as a precursor for production of other chemicals such as emollients and plasticizers.[3] It is encountered in plants, fruits, and wines.[4][5] The odor has been reported as "heavy, earthy, and slightly floral" for the R enantiomer and "a light, sweet floral fragrance" for the S enantiomer.[6][7]
ROH
was invoked but never defined (see the help page).