Trimethylolpropane (TMP)

Trimethylolpropane (TMP)

Trimethylolpropane (TMP) is the organic compound with the formula CH3CH2C(CH2OH)3. This colourless to white solid with a faint odor is a triol. Containing three hydroxy functional groups, TMP is a widely used building block in the polymer industry.

Trimethylolpropane (TMP) is used in the production of adhesive resins such as (polyurethanes polyester polyol and polycarbonate diol).

Trimethylolpropane (TMP) is used as a precursor for the manufacture of resins including alkyds, saturated polyesters and polyurethanes (polyester polyol and polycarbonate diol). Due to its structure, it TMP imparts high UV and chemical resistance


Contants Indexes
Appearance White flake or tiny coloured crystal
purity 98.5
Hydroxy value 37.5
acidity as formic 0.003
Ash 0.005
Moisture 0.1
Melting point 56-59
Phthalic colour (gardner) 1

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