Description

Trimethylolpropane Ethoxylate (1Eo/Oh) is a specialized polyol ether surfactant derived from the ethoxylation of trimethylolpropane. This compound is valued for its trifunctional hydroxyl structure and hydrophilic character, making it a versatile building block and reactive intermediate. It is primarily used in the synthesis of high-performance polymers, resins, and specialty surfactants for demanding industrial applications. Global industries such as coatings, adhesives, and polyurethane manufacturing rely on its consistent quality and reactivity.

Application

• As a key crosslinking agent and monomer in the production of alkyd, polyester, and polyurethane resins.
• An essential hydrophilic component in the formulation of high-performance water-based coatings and inks.
• A reactive intermediate for synthesizing specialty surfactants and emulsifiers with controlled HLB values.
• Used in the manufacture of radiation-curable oligomers for UV-curing applications in adhesives and sealants.
• As a plasticizer and viscosity modifier in various polymer systems to enhance flexibility and processing.
• In the synthesis of lubricant additives and functional fluids requiring thermal and oxidative stability.

Basic Information

Product Name	Trimethylolpropane Ethoxylate (1Eo/Oh)
CAS No.	302911-84-8
Molecular Formula	C9H20O5
Molecular Weight	208.25 g/mol
Synonyms	2,2-Bis(hydroxymethyl)butyl alcohol ethoxylate (1 EO); TMP-1EO; Trimethylolpropane monoethoxylate; 1-Ethoxy-2,2-bis(hydroxymethyl)butane; Ethoxylated trimethylolpropane (1 mol); 2-Ethyl-2-[(2-hydroxyethoxy)methyl]-1,3-propanediol; Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (1:1)
EINECS	Contact for details

Quality Control

Our Trimethylolpropane Ethoxylate (1Eo/Oh) is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including assay, hydroxyl value, and water content determination, to ensure it meets precise specifications and consistent performance. Certificates of Analysis (COA) documenting purity and key parameters are available upon request for quality assurance and regulatory compliance.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Hydroxyl Value	Contact for details
Water Content (KF)	≤ 0.5 %
pH (5% solution)	5.0 - 7.0

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