Description

Lignosulfonic Acid, Chromium Salt is a coordination complex formed from lignin derivatives and chromium ions. This compound serves as a versatile, water-soluble agent valued for its binding and dispersing properties in demanding industrial processes. It is primarily utilized in sectors such as oilfield drilling, leather tanning, and as a component in corrosion inhibitors and wood adhesives.

Application

• Oilfield Drilling Fluids: Acts as a deflocculant and fluid loss control additive in water-based mud systems.
• Leather Tanning: Used as a chrome tanning agent to improve the hydrothermal stability and durability of leather.
• Corrosion Inhibition: Functions as a component in formulations designed to protect metal surfaces in aqueous systems.
• Adhesive & Binder Systems: Serves as a cross-linking agent or modifier in wood composite adhesives and foundry sand binders.
• Dispersant for Pigments & Dyes: Enhances the stability and uniformity of suspensions in various coating and coloring applications.
• Waste Water Treatment: Can be employed as a flocculant aid for the removal of suspended solids.

Basic Information

Product Name	Lignosulfonic Acid, Chromium Salt
CAS No.	9066-50-6
Molecular Formula	Complex, variable (Lignosulfonate-Cr complex)
Molecular Weight	Variable (Polymeric complex)
Synonyms	Chromium Lignosulfonate; Lignosulfonic Acid Chromium Salt; Chrome Lignosulfonate; Chromium(III) Lignosulfonate; Lignin Sulfonic Acid, Chromium Complex; Drilling Mud Additive Chrome Lignosulfonate; Tanning Agent Chrome Lignate; CLS
EINECS	Contact for details

Quality Control

Our Lignosulfonic Acid, Chromium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analysis to ensure consistent performance, including testing for chromium content, sulfonate activity, solubility, and pH. Certificates of Analysis (COA) documenting these parameters 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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent caking and degradation.

Specification

Item	Specification
Appearance	Brown to dark brown powder or granules
Identification (IR)	Conforms
Chromium (Cr) Content	Contact for details
pH (1% Solution)	3.0 - 5.0
Solubility in Water	Completely soluble
Loss on Drying	≤ 8.0 %
Sulfate Ash	Contact for details

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