Description

Sodium Lignosulfonate is a water-soluble anionic polymer derived from lignin, a major component of wood. This versatile compound serves as a highly effective dispersant, binder, and stabilizer across numerous industrial processes. Key industries that rely on its properties include construction, agriculture, ceramics, and oilfield services, where it improves performance and cost-efficiency.

Application

• Concrete Admixture: Acts as a water-reducing agent and plasticizer to improve workability and strength of concrete mixes.
• Oil Well Drilling Fluids: Functions as a deflocculant and fluid loss control additive in drilling mud formulations.
• Agricultural Dispersant: Used in pesticide and fertilizer formulations to enhance dispersion and stability of active ingredients.
• Ceramics & Bricks: Serves as a binder and plasticizer in clay bodies, improving green strength and forming properties.
• Dye & Pigment Dispersant: Enhances the dispersion and color strength of dyes and pigments in various applications.
• Dust Suppression: Applied to roads and mining sites to control dust by binding fine particles.
• Lead-Acid Battery Production: Used as an expander in battery plate paste to improve performance and lifespan.
• Animal Feed Pellet Binder: Improves the durability and quality of feed pellets.

Basic Information

Product Name	Sodium Lignosulfonate
CAS No.	8061-51-6
Molecular Formula	Variable polymer (C₉H₈O₂(OCH₃)₀.₉(SO₃Na)₀.₄)ₙ
Molecular Weight	Variable (5,000 - 50,000 g/mol typical)
Synonyms	Lignosulfonic acid, sodium salt; Sodium ligninsulfonate; Lignin sulfonate, sodium; Kraft lignin, sulfonated; Vanisperse; Borresperse; Marasperse; Norlig; Polyfon
EINECS	232-515-1

Quality Control

Our Sodium Lignosulfonate is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including purity, sulfonate content, reducing sugars, pH, and solubility to ensure consistent performance and compliance with industry standards. Certificates of Analysis (COA) are available upon request to support your quality assurance protocols.

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); ensure containers are sealed after each use to prevent caking and degradation.

Specification

Item	Specification
Appearance	Brown to yellow-brown powder
Identification (IR)	Conforms
Assay (Lignosulfonate Content)	≥ 90%
pH (10% solution)	8.0 - 10.0
Reducing Substances (as Glucose)	≤ 4.0%
Water Solubility	Completely soluble
Loss on Drying	≤ 5.0%
Sulfate Ash	20 - 30%

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