Description

Trimethylolpropane is a versatile trihydric alcohol, a key building block in polymer chemistry valued for its trifunctional reactivity and excellent thermal and hydrolytic stability. Its primary commercial importance lies in its role as a core polyol for producing high-performance alkyd resins, polyurethane foams and coatings, and synthetic lubricants. This compound is essential for manufacturers in the coatings, adhesives, sealants, elastomers, plasticizers, and radiation-curing industries seeking to enhance product durability and performance.

Application

• Alkyd Resins: A fundamental polyol component for producing durable, weather-resistant industrial and decorative coatings.
• Polyurethane Systems: Used in the synthesis of rigid and flexible foams, elastomers, adhesives, and high-performance coatings, contributing to mechanical strength and chemical resistance.
• Radiation-Curable Resins: Serves as a precursor for acrylate esters used in UV-curable inks, coatings, and adhesives.
• Synthetic Lubricants & Plasticizers: Employed in the manufacture of ester-based lubricants and plasticizers that offer superior thermal stability and low-temperature performance.
• Crosslinking Agent: Functions as an effective crosslinker in various polymer systems to improve hardness, solvent resistance, and thermal properties.
• Unsaturated Polyester Resins (UPR): Modifies resin properties for applications in fiberglass-reinforced plastics and gel coats.

Basic Information

Product Name	Trimethylolpropane
CAS No.	77-99-6
Molecular Formula	C6H14O3
Molecular Weight	134.17 g/mol
Synonyms	2-Ethyl-2-(hydroxymethyl)-1,3-propanediol; TMP; 1,1,1-Tris(hydroxymethyl)propane; Ethyltrimethylolmethane; 2,2-Di(hydroxymethyl)butanol; Tris(hydroxymethyl)propane; Trimethylol propane
EINECS	201-074-9

Quality Control

Our Trimethylolpropane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, color, and physical properties. Certificates of Analysis (COA) documenting key parameters are provided to guarantee consistent quality and traceability for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White crystalline solid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0 %
Color (APHA)	≤ 20
Water Content (KF)	≤ 0.10 %
Melting Point	57 - 59 °C
Hydroxyl Value	1230 - 1250 mg KOH/g
Acidity (as Acetic Acid)	≤ 0.02 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.