Sodium Ligninsulfonate

General Information

Product Name: Sodium Ligninsulfonate
CAS: 8061-51-6
Catalog: SUR-AN-020
Applications: Dye and pigment dispersants, concrete admixtures, leather and papermaking industries, agricultural and industrial applications, others

Introduction

Sodium ligninsulfonate, a byproduct of the sulfite pulping process, is derived from lignin, a complex organic polymer found in the cell walls of plants. This anionic surfactant exhibits excellent compatibility with a wide range of chemicals, making it a versatile ingredient in numerous industrial applications.

Characteristics

Sodium ligninsulfonate is distinguished by several key characteristics essential for its applications:

Solubility: The molecular composition of sodium ligninsulfonate consists of lignin molecules bonded with sulfonate groups. This structural arrangement imparts hydrophilic properties, making the compound highly soluble in water.

Basic Parameters

Items	SUR-AN-020
Appearance	Brown powder
Total Reduction Content (%)	3-5
pH (10% aqueous)	9-11
Reducing Sugar Content (%)	≤ 5
Insolubles in Water	≤ 1.0
Sulfate Content (%)	≤ 3.0

* Typical values (not warranted values)

Applications

Its primary functions include acting as a dispersant, binder, and emulsifier, which are crucial in several manufacturing processes.

Dye and Pigment Dispersants: In the textile and pigment industries, sodium ligninsulfonate is extensively used as a dispersant for disperse and vat dyes. It helps in evenly distributing the dye particles in the solution, resulting in uniform coloration.
Concrete Admixtures: Sodium ligninsulfonate serves as an effective water-reducing agent in concrete admixtures. By reducing the water content required for mixing, it enhances the workability and strength of concrete. Additionally, it aids in reducing the overall cost of concrete production by lowering the amount of cement needed.
Leather and Papermaking Industries: In the leather industry, sodium ligninsulfonate is used as a dispersant to improve the penetration of tanning agents, enhancing the quality of the finished leather. In papermaking, it acts as a dispersant to improve the dispersion of fillers and pigments, leading to better paper quality and increased production efficiency.
Agricultural and Industrial Applications
In agriculture, sodium ligninsulfonate is utilized in pesticide formulations to enhance the dispersion and stability of active ingredients.
In the construction, ceramics, and oil drilling industries, it serves as a dispersant, improving the processing and performance of various materials.
Additionally, it is employed in water treatment processes and the carbon black industry as a dispersing agent to enhance product quality and operational efficiency.

Packaging and Storage

Packaging Options: Typically packaged in 25 kg bags, customizable according to customer requirements.
Storage Conditions: Stored in a cool, dry place away from direct sunlight and heat sources to maintain the compound's integrity and efficacy.

Sodium ligninsulfonate's unique characteristics as an anionic surfactant and its compatibility with other chemicals make it an essential ingredient in processes ranging from dyeing and concrete production to leather processing and agricultural formulations. Contact Alfa Chemistry today to learn more about our products and how they can benefit your applications.

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