Description

Lignin, Alkali, 2-Hydroxypropyl Ether CAS NO 88402-77-1 is a chemically modified lignin derivative, where alkali lignin has been etherified with propylene oxide to introduce 2-hydroxypropyl groups. This modification significantly enhances its solubility, reactivity, and compatibility with various polymer systems, making it a valuable bio-based intermediate. It is primarily sought after by industries focused on sustainable material development and performance chemical manufacturing. Key applications include its use as a dispersant, binder, and rheology modifier in construction materials, adhesives, and advanced composites.

Application

• Concrete Admixtures: Acts as a highly effective water-reducing and set-retarding dispersant in cement formulations.
• Oilfield Drilling Fluids: Serves as a fluid loss control agent and rheology modifier in water-based mud systems.
• Agricultural Formulations: Used as a binder and dispersing agent in wettable powders and granulated pesticides or fertilizers.
• Carbon Black & Pigment Dispersion: Functions as a grinding aid and stabilizer in the production of pigment masterbatches and inks.
• Foundry Sand Binders: Employed as a core binder in sand casting processes for metal parts.
• Rubber Reinforcement: Used as a reinforcing filler and processing aid in rubber compounds to improve mechanical properties.
• Wood Adhesives: Incorporated as a partial replacement for phenol-formaldehyde resins in plywood and particleboard.
• Dust Control Agents: Applied as a binder for road dust suppression and soil stabilization.

Basic Information

Product Name	Lignin, Alkali, 2-Hydroxypropyl Ether
CAS No.	88402-77-1
Molecular Formula	Contact for details
Molecular Weight	Variable polymer
Synonyms	Hydroxypropylated Alkali Lignin; 2-Hydroxypropyl Ether of Lignin; Lignin, alkali, ether with 1,2-propanediol; Propoxylated Lignin; Alkali Lignin Hydroxypropyl Ether; Modified Lignosulfonate; HP-Lignin; Lignin Polyoxypropylene Glycol Ether
EINECS	Contact for details

Quality Control

Our Lignin, Alkali, 2-Hydroxypropyl Ether is produced under a stringent quality management system. Each batch undergoes rigorous testing for critical parameters including degree of substitution, molecular weight distribution, solubility, and ash content to ensure consistent performance and reliable supply. Certificates of Analysis (COA) documenting the full specification are available upon request.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to minimize moisture absorption and caking.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms
Moisture Content	≤ 8.0 %
Ash Content	≤ 3.0 %
pH (10% solution)	9.0 - 12.0
Hydroxypropyl Substitution Degree	Contact for details
Solubility in Water	Fully soluble

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