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B5: Ebullioscopic (Boiling Point Elevation) Constants

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    The ebullioscopic constant is a characteristic property of the solvent and not the solute in a solution.

    Compound Ebullioscopic constant Kb in units of [(°C·kg)/mol] or [°C/molal]
    Acetic acid 3.22
    Acetone 1.80
    Acetonitrile 1.44
    Aniline 3.82
    Anisole 4.20
    Benzaldehyde 4.24
    Benzene 2.64
    1-Butanol 2.17
    Carbon disulfide 2.42
    Chlorobenzene 4.36
    1-Chlorobutane 3.13
    Cyclohexane 2.92
    Cyclohexanol 3.5
    Decane 6.10
    Dichloromethane 2.42
    Diethyl ether 2.20
    Dimethyl sulfoxide 3.22
    1,4-Dioxane 3.01
    Ethanol 1.23
    Ethyl acetate 2.82
    Ethylene glycol 2.26
    Heptane 3.6
    Hexane 2.90
    Iodomethane 4.31
    Methanol 0.86
    Methyl acetate 2.21
    N -Methylaniline 4.3
    N -Methylformamide 2.2
    Nitrobenzene 5.2
    Nitromethane 2.09
    1-Octanol 5.06
    Phenol 3.54
    1-Propanol 1.66
    2-Propanol 1.58
    Pyridine 2.83
    Pyrrole 2.33
    Pyrrolidine 2.32
    Tetrachloroethylene 6.18
    Tetrachloromethane 5.26
    Toluene 3.40
    Trichloroethylene 4.52
    Trichloromethane 3.80
    Water 0.513
    o-Xylene 4.25

    B5: Ebullioscopic (Boiling Point Elevation) Constants is shared under a Public Domain license and was authored, remixed, and/or curated by LibreTexts.

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