Trimethylolpropane (TMP) is an organic chemical compound with the molecular formula C₆H₁₄O₃. TMP is considered a versatile, multifunctional fine chemical and is extensively used as a chain extender in the manufacture of polymers and resins. The structure of TMP has a propane carbon atom in the centre that is bonded to three -CH₂OH groupings (hydroxymethyl functions). This structure provides a high degree of reactivity that has made TMP an important building block for the production of various materials/chemicals.

  • CAS Number: 77-99-6

  • Appearance: Colorless to white solid

  • Melting Point: ~58°C

  • Boiling Point: ~289°C

  • Density: 1.084 g/mL

  • Solubility: Soluble in water, lower alcohols, glycerin, and N,N-dimethylformamide; partially soluble in acetone, ethyl acetate; slightly soluble in carbon tetrachloride, ethers, and chloroform.

Key Applications

TMP’s flexible chemistry provides an opportunity for use across numerous industries including resin, coatings, and polymers:

  • TMP has been best known for use as a chain extender in the production of alkyds, polyurethanes, and polyesters (both unsaturated and saturated) resins. Resin is very significant to TMP’s production when supporting the manufacture of coatings, adhesives, and varnishes.
  • TMP has been very popular as a component of coatings and paint because of its ability to improve the hardness, adhesion, and chemical resistance of the final product.
    Therefore, TMP can be used in either solvent-based formulations or water-based formulations. TMP will also continue to support the development of aviation lubricants through the formulation of high temperature lubricants to improve the performance of those lubricants. Surfactants and Wetting Agents.
  • TMP plays an essential role in the surfactant and wetting agent supply chain and is the raw material source for the production of surfactants and wetting agents used in cleaning, detergent, and industrial applications.
  • Applications in Explosives and Printing: The chemical reactivity of TMP derivatives makes them ideal candidates for the manufacture of Explosive and Printing Ink products where they are both stable and reactive compounds necessary for that application. Textile and PVC Industries:TMP serves as an auxiliary agent in textile processing, improving fabric properties such as water resistance and softness.

Chemical Reactions

TMP reacts with organic acids to form both mono-and poly-esters; it also yields either tetramethyldiethyl ether, or diethyl ether (or both) when reacting with aldehydes or ketones. TMP will also react with diisocyanates to yield carbamates, which are a significant part of polyurethanes. Due to the versatility of these reactions, TMP is very versatile as a manufacturing ingredient for specialty chemicals and products.

Packaging and Storage

  • TMP is typically supplied in drums or bulk quantities, depending on customer requirements.

  • It should be stored in a cool, dry place, away from direct sunlight and moisture, to maintain its stability and reactivity.

Certificates

OHSMS QMSEMS

 

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