Description

Lignosulfonic Acid CAS NO 8062-15-5 is a water-soluble, anionic polyelectrolyte derived from the sulfite pulping of wood. This versatile biopolymer is valued for its excellent dispersing, binding, and complexing properties, making it a key functional additive in numerous industrial processes. It is essential for manufacturers in sectors such as construction, agriculture, and chemical production seeking sustainable and effective performance enhancers.

Application

• Concrete Admixtures: Acts as a highly effective water reducer and plasticizer, improving workability and strength of concrete mixes.
• Dust Control Agent: Used to suppress dust on unpaved roads and construction sites by binding soil particles.
• Agricultural Dispersants: Enhances the suspension and efficacy of pesticides, herbicides, and liquid fertilizers.
• Oil Well Drilling Fluids: Serves as a deflocculant and thinner in drilling muds to control viscosity and fluid loss.
• Industrial Dispersant: Stabilizes suspensions in ceramic production, dye manufacturing, and carbon black processing.
• Pellet Binder: Functions as a natural binder in animal feed pellets and mineral ore briquetting.
• Lead-Acid Battery Additive: Improves the performance and life of battery plates.
• Tanning Agent: Used in the leather industry as a syntan auxiliary to aid in the tanning process.

Basic Information

Product Name	Lignosulfonic Acid
CAS No.	8062-15-5
Molecular Formula	Complex Polymer (C20H24O10S2 - Representative Unit)
Molecular Weight	Variable (Polymeric)
Synonyms	Lignosulfonic Acid; Ligninsulfonic Acid; Sulfonated Lignin; Sodium Lignosulfonate (common salt form); Calcium Lignosulfonate; Lignin Sulfonate; Kraft Lignin Sulfonate; Sulfite Lignin; EINECS 232-503-5
EINECS	232-503-5

Quality Control

Our Lignosulfonic Acid is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as sulfonate group content, molecular weight distribution, and purity. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can lead to caking or reduced efficacy.

Specification

Item	Specification
Appearance	Brown to dark brown powder or liquid
Identification (IR)	Conforms
Solids Content	≥ 95% (Powder) / 40-55% (Liquid)
pH (10% Solution)	2.5 - 4.5
Sulfate Ash	≤ 28%
Reducing Substances	≤ 4%
Water Insolubles	≤ 0.5%

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