N-pentane Chinese alias: pentane; pentane oil English name: N-pentane English alias: pentane B&J brand 4 L; Pentane ,99.5%; [1] Pentane mixed isomers; Pentane oil; Pentane CAS No.: 109-66- 0EINECS:203-692-4 Molecular formula: C5H12 Molecular weight: 72.1488 Appearance and properties Colorless liquid, faint mint flavor Vapor pressure 53.32kPa/18.5℃ Flash point: -40℃ Melting point -129.8℃ Boiling point: 36.1 ℃ Solubility Slightly soluble in water, soluble in most organic solvents such as ethanol density relative density (water = 1) 0.63; relative density (air = 1) 2.48 stability stable saturated vapor pressure (kPa): 53.32 (18.5 ℃) combustion heat (kJ/mol): 3506.1 critical temperature (℃): 196.4 critical pressure (MPa): 3.37 The main use is used as a solvent, synthesis of pentanol, isopentane, etc.