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Trimethylol Propane

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Product Description

Trimethylol Propane:-

Physical and Chemical Properties:

Physical state and Appearance : Liquid.
Odor : Mild
Boiling Point : > 200°C (> 392°F)
Flash Point : 183°C (361°F) (DIN 51758)
Vapor Pressure : < 2 Pa at 20°C
Vapor Density : 1.1 g/cm3 at 25°C
Solubility : Insoluble at 20°C
Characteristic : Specification
Melting Pt. °C : 58 min
Hydroxyl, %C : 37.5 min
Acidity Matter, % : 0.002 max
Moisture, % : 0.05 max
Ash, % : 0.001 max
Resin Test, % : 3 max


There are a wide variety of applications for TMP like:
  • Alkyds for air-drying, acid-curing (urea or melamine resin), baking (urea or melamine resin) and isocyanate curing.
  • Saturated polyesters for liquid coatings, powder coatings and polyurethane systems (various).
  • Isocyanate crosslinkers
  • Pigment coating
  • Esters with acrylic acid for UV-curing, methacrylic acid as crosslinker in rubber and fatty acids as lubricants (various).
  • TMP is produced via a two step process, starting with the condensation of butanal with formaldehyde:
  • The second step entails a Cannizaro reaction:
  • CH3CH2C (CH2OH) 2CHO + CH2O + NaOH → CH3CH2C (CH2OH) 3 + NaO2CH
  • Approximately 200,000,000 kg is produced annually in this way.
  • Do not breathe vapor. Avoid ignition sources. Avoid contact with skin, eyes and clothing.
  • Wipe up with absorbent, inert material and place in suitable and closable container for disposal.
  • Handle and open container with care. Avoid vapor formation and ignition sources. Ensure good ventilation and local exhaust. Keep away from food and drink. Store in the original container securely closed and at room temperature.


Product Code : 02

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