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Chemistry LibreTexts

Boiling Points of Some Organic Compounds Whose Molecules Contain 32 or 34 Electrons

  • Page ID
  • Name Projection Formula Type of Compound Boiling Point in degrees C
    Isobutane Branched Alkane -10.2
    n-Butane Normal Alkane -0.5
    Methyl ethyl ether Ether 10.8
    Methyl Formate Ester 31.5
    Propanal Aldehyde 48.8
    Acetone Ketone 56.2
    2-Propanol Alcohol 82.4
    1-Propanol Alcohol 82.4
    Acetic Acid Carboxylic acid 117.9
    Ethylene Glycol Dialcohohl (two OH groups) 198

    This table shows the boiling points of organic compounds of similar size. This, then, provides a good means of comparing intermolecular forces of different structure types. In general, decreasing branching, increasing polarity, and increasing hydrogen bonding opportunities increases the boiling point. This makes sense, as all three of these contribute to increase intermolecular forces.