trihydroln.
/trʌɪˈhʌɪdrɒl/ Chemistry. Obsolete exc. Historical.
A supposed trimer of water, (H2O)3, formerly thought to be present especially in ice.
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trihydrol1900
1900 W. Sutherland in London, Edinb. & Dublin Philos. Mag. 50 460 I propose for international convenience to call H2O hydrol, (H2O)2 dihydrol, and (H2O)3 trihydrol. Steam is hydrol, ice is trihydrol, and water a mixture of dihydrol and trihydrol.
1932 Proc. National Acad. Sci. U.S.A. 18 136 (heading) The physiological effect of trihydrol in water.
1957 G. E. Hutchinson Treat. Limnol. I. iii. 196 Sutherland (1900)..supposed liquid water to consist of dihydrol H4O2 with trihydrol H6O3 in solution... Other workers believed that hydrol H2O was also present, at least near the boiling point.
1972 H. S. Frank in F. Franks Water I. xiv. 531 Many of the detailed models..have been overtaken by events and are now of hardly more than historical interest. Perhaps the classic example of such obsolescence is found in the theory put forward in 1900..representing water as a mixture of monohydrol (monomeric, steamlike), dihydrol (dimeric, intrinsically liquid), and trihydrol (trimeric, icelike) molecules.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
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n.1900