Description

Trimethylolpropane is a versatile trihydric alcohol, a key organic intermediate prized for its trifunctional reactivity and excellent hydrolytic stability. This compound is essential for producing high-performance polymers, resins, and specialty chemicals with enhanced durability and resistance properties. It is a critical raw material for manufacturers in the coatings, adhesives, plastics, and synthetic lubricants industries seeking to improve product performance.

Application

• Alkyd Resins & Coatings: A core polyol for producing high-quality, durable alkyd resins used in industrial and decorative paints, varnishes, and enamels.
• Polyurethane (PU) Systems: Serves as a crosslinking agent and polyol component in the synthesis of PU foams, elastomers, adhesives, and sealants, enhancing mechanical strength and thermal stability.
• Saturated Polyester Resins: Used in manufacturing saturated polyester resins for powder coatings, coil coatings, and can coatings, offering excellent weatherability and chemical resistance.
• Radiation-Curable Systems: An important precursor for acrylate esters used in UV-curable inks, coatings, and adhesives for rapid curing and high efficiency.
• Synthetic Lubricants & Plasticizers: Employed in the production of ester-based synthetic lubricants and plasticizers that exhibit low volatility and high thermal stability.
• Crosslinking Agent for Melamine Resins: Acts as a modifier and crosslinker in amino (e.g., melamine) resins for automotive and industrial coatings.

Basic Information

Product Name	Trimethylolpropane
CAS No.	101377-62-2
Molecular Formula	C6H14O3
Molecular Weight	134.17 g/mol
Synonyms	2-Ethyl-2-(hydroxymethyl)-1,3-propanediol; 2,2-Di(hydroxymethyl)butanol; TMP; Ethyltrimethylolmethane; 1,1,1-Tris(hydroxymethyl)propane; Trimethylol propane; Tris(hydroxymethyl)propane
EINECS	Contact for details

Quality Control

Our Trimethylolpropane is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing including assay, hydroxyl value, moisture content, and color determination. Certificates of Analysis (COA) documenting full specifications are provided with every shipment to support your quality assurance protocols.

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 %
Hydroxyl Value	1230 - 1250 mg KOH/g
Melting Point	57 - 59 °C
Water Content	≤ 0.2 %
Color (APHA)	≤ 20
Ash Content	≤ 0.01 %

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