TABLE I—PHYSICAL AND PHYSIOLOGICAL PROPERTIES OF CHEMICALS USED AS STENCHES ----------------+-------+--------+-----------------+-------------+------------ |Boiling|Freezing| |Physiological| Chemical | Point,| Point, | Character | Properties | Remarks | °C. | °C. | of Odor | of Vapor | ----------------+-------+--------+-----------------+-------------+------------ Amyl acetate | 148 | -75 |Banana oil |Harmless |Pleasant to | |(thick) | | |most people; | | | | |disagreeable | | | | |to some Ethyl acetate | 77.4 | -83.8 |Fruity, pleasant |Harmless | Amyl alcohol | 137.8 | |Alcoholic |Harmless | Butyric acid | 162.3 | -7.9 |Very disagreeable|Harmless | Valeric acid | 186.4 | -58.5 |Very disagreeable|Harmless | Ethyl ether | 35 | -112.6 |Pungent |Soporific | Phenyl | 165 | |Very disagreeable|Unknown | isocyanide | | | | | Allyl | 151 | |Mustard oil, |Lachrymatory | isothiocyanate | | | disagreeable | and toxic | Methyl | 119 | 34 |Mustard oil, |Lachrymatory | isothiocyanate| | | disagreeable | and toxic | Amyl isovalerate| 190 | |Very disagreeable|Harmless | Butyl mercaptan | 97 | |Very disagreeable|Harmless | Isobutyl | 88 | |Very disagreeable|Unknown |Probably mercaptan | | | | | harmless Ethyl mercaptan | 37 | -144.4 |Very disagreeable|Harmless | Propyl mercaptan| 67 | |Very disagreeable|Unknown |Probably | | | | | harmless Methyl | 222.2 | -8.3 |Oil of |Harmless | salicylate | | | wintergreen, | | | | | pleasant | | Amyl thioether | 95-98 | |Very disagreeable|Unknown |Probably | | | | | harmless Ethyl thioether | 92 | -99.5 |Very disagreeable|Unknown |Probably | | | | | harmless Carbon | 76.74 | -19.5 |Sweet, unpleasant|Harmless | tetrachloride | | | | | Chloroform | 62 | -63.2 |Sweet, agreeable |Soporific | Iodoform | Decom-| 119 |Unpleasant |Harmless |