Description

Lignosulfonic Acid, Copper Salt is a coordination complex derived from lignin, a major component of wood pulp, and copper ions. This compound is valued for its dual functionality as a source of bio-based lignosulfonate and essential copper, offering unique properties in various industrial processes. It is primarily utilized in sectors such as agriculture, animal nutrition, and specialty chemical manufacturing where a stable, bio-derived copper complex is required.

Application

• Animal Feed Additive: Serves as a source of bioavailable copper in mineral premixes for livestock and poultry nutrition.
• Agricultural Micronutrient Fertilizer: Used in foliar sprays and soil amendments to correct copper deficiencies in crops.
• Wood Preservative Formulation: Acts as a component in formulations designed to protect timber from fungal decay and insect damage.
• Industrial Biocide: Employed in cooling water systems, pulp/paper mills, and other industrial processes for microbial control.
• Catalyst and Chemical Intermediate: Functions in specific organic synthesis reactions and as a catalyst precursor.
• Adhesive and Binder Modifier: Used to modify the properties of lignosulfonate-based binders in foundry sands, ceramics, or particleboard.

Basic Information

Product Name	Lignosulfonic Acid, Copper Salt
CAS No.	61827-83-6
Molecular Formula	Complex, variable (Lignosulfonate-Cu)
Molecular Weight	Variable (Polymeric)
Synonyms	Copper Lignosulfonate; Lignosulfonic Acid Copper Salt; Cupric Lignosulfonate; Copper(II) Lignosulfonate; Lignin Sulfonic Acid Copper Complex; Calcium Lignosulfonate Copper Complex; CLS-Cu; Lignosulfonate Cu
EINECS	Contact for details

Quality Control

Our Lignosulfonic Acid, Copper Salt is manufactured under a strict quality management system. Each batch is tested to ensure consistent composition, copper content, and physical properties. Certificates of Analysis (COA) detailing assay, heavy metal limits, and other critical 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 to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Brown to dark brown powder or granules
Identification (Copper)	Positive
Assay (Copper Content)	5.0% - 8.0% (or as specified)
Loss on Drying	≤ 8.0%
Sulfate Ash	≤ 30.0%
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm

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