any of a class of unsaturated ketones, having a general formula RRC=C=O, that react as if they were inner acid anhydrides
the parent compound of this class, CH=C=O, an unstable, reactive colourless gas
A ketene is an organic compound of the form R'R''C=C=O. The term is also used specifically to mean ethenone, the simplest ketene, where R' and R'' are hydrogen atoms. Ketenes were first studied as a class by Hermann Staudinger.
The numerical value of ketene in Chaldean Numerology is: 8
The numerical value of ketene in Pythagorean Numerology is: 6
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