Trimethylolpropane

Trimethylolpropane (TMP) is a high-performance multifunctional polyol widely used as a key chemical intermediate in various industrial manufacturing sectors. It is an organic compound with the chemical formula C₆H₁₄O₃ and is commercially known as Trimethylolpropane, 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol, TMP Polyol, and Tris(hydroxymethyl)propane. This white crystalline solid is characterized by its three primary hydroxyl groups, excellent chemical stability, low volatility, high reactivity, and superior compatibility with many resin systems. Trimethylolpropane is manufactured through controlled chemical synthesis, mainly by the reaction of n-butyraldehyde with formaldehyde in the presence of alkaline catalysts, followed by purification, concentration, crystallization, and drying processes to achieve high-purity industrial grades suitable for global export markets.

Trimethylolpropane is an essential raw material in the production of high-quality coatings, polyurethane systems, alkyd resins, synthetic lubricants, adhesives, sealants, and specialty polymers. Due to its multifunctional hydroxyl structure, TMP improves hardness, durability, chemical resistance, weatherability, and thermal performance of finished products. It is widely applied in automotive coatings, industrial paints, powder coatings, radiation-curable coatings, polyurethane foams, elastomers, printing inks, plastic additives, and advanced resin formulations. Commercially available grades of Trimethylolpropane include standard industrial grade TMP, high-purity TMP, and specialty polymer-grade TMP, each designed for different applications such as high-performance coatings, polyurethane production, esterification processes, and specialty chemical manufacturing.

Trimethylolpropane supplied for international wholesale trade is available with controlled specifications including high assay content, low moisture level, low acidity, and consistent crystal quality. The product offers significant advantages such as excellent cross-linking capability, improved mechanical strength, enhanced resistance against aging and environmental conditions, and efficient processing performance. As a reliable industrial chemical, TMP is demanded by manufacturers of paints, coatings, plastics, resins, and polymer products worldwide. Export-quality Trimethylolpropane provides excellent value for industries requiring stable performance, high purity, and dependable supply chains for large-scale production.

Trimethylolpropane Technical Specification

Specification	Value
Product Name	Trimethylolpropane (TMP)
Chemical Name	2-Ethyl-2-(hydroxymethyl)-1,3-propanediol
Chemical Formula	C₆H₁₄O₃
CAS Number	77-99-6
Appearance	White crystalline solid
Purity (Assay)	≥ 98%
Hydroxyl Value	Approx. 1,250–1,300 mg KOH/g
Molecular Weight	134.17 g/mol
Melting Point	58–62 °C
Moisture Content	Low moisture grade available
Solubility	Soluble in water and organic solvents

IF YOU ARE WILLING TO BUY TRIMETHYLOLPROPANE FROM VERIFIED IRANIAN SUPPLIERS, PLEASE SCROLL DOWN AND SUBMIT YOUR REQUEST.

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FAQ Trimethylolpropane

Trimethylolpropane is mainly used as a multifunctional polyol in coatings, polyurethane products, alkyd resins, adhesives, lubricants, sealants, and specialty polymer manufacturing due to its excellent cross-linking properties.

Trimethylolpropane is also commercially known as TMP Polyol, 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol, and Tris(hydroxymethyl)propane.

Trimethylolpropane is produced through the chemical reaction of n-butyraldehyde and formaldehyde under controlled conditions, followed by purification, crystallization, and drying to obtain industrial-grade material.

TMP improves coating durability, hardness, chemical resistance, thermal stability, weather resistance, and overall performance of polymer and resin-based products.

Commercial types include standard industrial grade, high-purity grade, and specialty polymer-grade TMP, which are selected according to coating, polyurethane, resin, and chemical processing requirements.

You can find a suitable supplier in Iran through Irancorps, which connects international buyers with verified Iranian manufacturers and exporters of industrial chemicals and provides assistance for sourcing, supplier communication, and export cooperation.