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trimethylolpropane : ウィキペディア英語版
trimethylolpropane

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Trimethylolpropane (TMP) is the organic compound with the formula CH3CH2C(CH2OH)3. This colourless solid is a triol. Containing three hydroxy functional groups, TMP is a widely used building block in the polymer industry.
==Production==
TMP is produced via a two step process, starting with the condensation of butanal with formaldehyde:
:CH3CH2CH2CHO + 2 CH2O → CH3CH2C(CH2OH)2CHO
The second step entails a Cannizaro reaction:
:CH3CH2C(CH2OH)2CHO + CH2O + NaOH → CH3CH2C(CH2OH)3 + NaO2CH
Approximately 200,000,000 kg are produced annually in this way.〔Peter Werle, Marcus Morawietz, Stefan Lundmark, Kent Sörensen, Esko Karvinen, Juha Lehtonen “Alcohols, Polyhydric” in Ullmann’s Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2008.〕

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