Description

Lignin, Organosolv, 2-Hydroxyethyl Ether CAS NO 90881-34-8 is a chemically modified lignin derivative produced via the organosolv process, where lignin is etherified with ethylene oxide to introduce hydrophilic 2-hydroxyethyl groups. This modification significantly enhances its solubility, reactivity, and compatibility in various formulations, making it a valuable bio-based alternative to synthetic polymers. It is primarily utilized in industries seeking sustainable and high-performance materials for applications ranging from dispersants and adhesives to advanced composites and controlled-release systems.

Application

• As a bio-based dispersant and stabilizer for pigments, dyes, and carbon black in coatings and inks.
• In the formulation of environmentally friendly adhesives and resins, including phenol-formaldehyde replacements.
• As a rheology modifier and binder in construction materials, such as concrete admixtures and gypsum boards.
• For the production of controlled-release matrices in agrochemical and pharmaceutical applications.
• As a reinforcing agent and compatibilizer in bio-composites and thermoplastic blends.
• In oilfield chemicals as a fluid loss additive and viscosity control agent for drilling muds.
• For the synthesis of polyols used in the manufacture of rigid and flexible polyurethane foams.

Basic Information

Product Name	Lignin, Organosolv, 2-Hydroxyethyl Ether
CAS No.	90881-34-8
Molecular Formula	Typically represented as a complex polymeric structure (C9H10O2(OCH2CH2OH))n
Molecular Weight	Variable (Polymer)
Synonyms	2-Hydroxyethyl Ether of Organosolv Lignin; Hydroxyethylated Organosolv Lignin; Lignin 2-Hydroxyethyl Ether; Organosolv Lignin Ethylene Oxide Adduct; Ethoxylated Organosolv Lignin; Lignin Polyoxyethylene Ether; Bio-based Polyol from Lignin; Modified Lignin Polyol
EINECS	Contact for details

Quality Control

Our Lignin, Organosolv, 2-Hydroxyethyl Ether is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in key parameters such as degree of substitution, molecular weight distribution, solubility, and ash content. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

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); the container must be kept tightly sealed after opening to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Brown to dark brown powder or granules
Identification (IR)	Conforms to structure
Solubility (in water)	Fully soluble to partially soluble
Hydroxyethyl Group Content	Contact for details
Moisture Content	< 5.0 %
Ash Content	< 2.0 %
pH (10% solution)	6.0 - 9.0

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