propylene Chem.
(ˈprəʊpɪliːn)
[f. propyl + -ene.]
1. The olefine of the tricarbon or propyl series, C3H6, a colourless gas; called also propene and tritylene.
| 1850 J. W. Reynolds in Jrnl. Chem. Soc. III. 114 It is this hydrocarbon..to which I propose to give the name of Propylene. 1850 Daubeny Atom. The. (ed. 2) 489 note, The discovery by Captain Reynolds of another homologue of olefiant gas, namely propylene. c 1865 Letheby in Orr's Circ. Sc. I. 116/1 Propylene.., or the super-olefiant gas of Dalton and Henry. |
2. Used
attrib. or in
Comb. in the names of derivatives:
propylene glycol, either of two isomeric liquids, CH
2OH·CHOH·CH
3 and CH
2OH·CH
2·CH
2OH;
spec. the 1,2-glycol (the former), which has a wide variety of uses, chiefly as a solvent or carrier, as a constituent of antifreeze, and in the food and perfume industries;
propylene imine (also
ˌpropylen(e)ˈimine) [
ad. G.
propylenimin (Gabriel & Ohle 1917, in
Ber. d. Deut. Chem. Ges. L. 815)], a synthetic, colourless, highly inflammable liquid, CH
3·CH·CH
2·NH, which is widely used industrially,
freq. in polymerized form and
esp. as a binding agent with dyes and adhesives, and in the manufacture of plastics, paper, etc.
| 1885 Morley & Green in Jrnl. Chem. Soc. XLVII. 132 From the aqueous portion of the distillate 140 grams of propylene glycol (boiling at 185–195°) can be obtained by fractional distillation. 1926 Jrnl. Biol. Chem. LXVIII. 416 It was..desired to convert propylene glycol into β-hydroxybutyric acid by a set of reactions which would not involve carbon atom (2). 1951 I. L. Finar Org. Chem. I. xvii. 329 Lactic acid..may be prepared: (i) By oxidising propylene glycol with dilute nitric acid. 1966 Kirk–Othmer Encycl. Chem. Technol. (ed. 2) X. 649, 1,2-Propylene glycol, CH3CHOHCH2OH, is a colorless and odorless liquid with a slightly sweet taste. |
| 1917 Jrnl. Chem. Soc. CXII. i. 564 β-Bromopropylamine and β-bromoisopropylamine..both yield β-bromoisopropylamine, this result being explicable by the intermediate compound being propylenimine. 1944 Jrnl. Org. Chem. IX. 133 Propylenimine was prepared from 2-amino-1-propanol. 1966 Kirk–Othmer Encycl. Chem. Technol. (ed. 2) XI. 527 Ethylenimine and propylenimine are colorless mobile liquids with a strong ammoniacal odor. 1971 Nature 16 Apr. 460/2 Propylene imine is an important chemical intermediate with a variety of applications in the production of polymers, coatings, adhesives, textiles and paper finishes. |