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Title: Ethynol  
Author: World Heritage Encyclopedia
Language: English
Subject: Ethanol
Publisher: World Heritage Encyclopedia


This article incorporates information from the
Skeletal formula of ethynol with an implicit hydrogen Spacefill model of ethynol
CAS number  YesY
ChemSpider  N
Jmol-3D images Image 1
Image 2
Molecular formula C2H2O
Molar mass 42.04 g mol−1
Density 0.981g/cm
Boiling point 77.1 °C (170.8 °F; 350.3 K) @ 760mmHg
Flash point 14.7 °C (58.5 °F; 287.8 K)
Std enthalpy of
41.6 kJ mol-1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N   YesY/N?)

Ethynol is an alcohol (ynol) with the formula C2H2O. It is the much less stable tautomer of ethenone.

At low temperature in a solid argon matrix it is possible to isomerize ethenone to form ethynol.[2][3]

See also


  1. ^ "Ethynol". The PubChem Project. USA: National Center for Biotechnology Information. 
  2. ^ Hochstrasser, Remo; Wirz, Jakob (1990). "Reversible Photoisomerisierung von Keten zu Ethinol". Angewandte Chemie 102 (4): 454.  
  3. ^ Hochstrasser, Remo; Wirz, Jakob (1989). "Ethinol: Photochemische Erzeugung in einer Argonmatrix, IR-Spektrum und Photoisomerisierung zu Keten". Angewandte Chemie 101 (2): 183.  
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