3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||88.150 g·mol−1|
|Density||0.811 g cm−3|
|Melting point||−78 °C; −109 °F; 195 K|
|Boiling point||137 to 139 °C; 278 to 282 °F; 410 to 412 K|
|22 g L−1|
|Vapor pressure||200 Pa (at 20 °C)|
Refractive index (nD)
Heat capacity (C)
|207.45 J K−1 mol−1|
|258.9 J K−1 mol−1|
Std enthalpy of
|−351.90–−351.34 kJ mol−1|
Std enthalpy of
|−3331.19–−3330.63 kJ mol−1|
|GHS signal word||WARNING|
|H226, H315, H332, H335|
|Flash point||49 °C (120 °F; 322 K)|
|300 °C (572 °F; 573 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
1-Pentanol, (or n-pentanol, pentan-1-ol), is an alcohol with five carbon atoms and the molecular formula C5H11OH. 1-Pentanol is a colorless liquid with an unpleasant aroma. It is the straight-chain form of amyl alcohol, one of 8 isomers with that formula.
The hydroxyl group (OH) is the active site of many reactions. The ester formed from 1-pentanol and butyric acid is pentyl butyrate, which smells like apricot. The ester formed from 1-pentanol and acetic acid is amyl acetate (also called pentyl acetate), which smells like banana.
In 2014, a study was conducted comparing the performance of diesel fuel blends with various proportions of pentanol as an additive. While gaseous emissions increased with higher concentrations of pentanol, particulate emissions decreased.
Pentanol can be prepared by fractional distillation of fusel oil. To reduce the use of fossil fuels, research is underway to develop cost-effective methods of producing (chemically identical) bio-pentanol with fermentation