Description

Cupric Stearate is the copper salt of stearic acid, a fine, light blue to bluish-green powder with the CAS number 660-60-6. This compound serves as a versatile and effective metal soap, valued for its role as a stabilizer, lubricant, and water-repellent agent in various industrial formulations. It is a critical material for manufacturers in the plastics, rubber, paint, and coatings industries seeking to enhance product performance and longevity.

Application

• PVC Stabilizer: Acts as a cost-effective heat stabilizer and lubricant in polyvinyl chloride (PVC) processing, helping to prevent degradation during extrusion and molding.
• Polymers and Rubber: Functions as a release agent, lubricant, and anti-tack additive in the production of synthetic rubbers and other polymer compounds.
• Paints and Coatings: Used as a flatting (matting) agent and water-repellent additive in certain industrial paint and varnish formulations.
• Waterproofing Agent: Imparts water-resistant properties to textiles, paper, and construction materials like concrete and plaster.
• Cosmetics and Personal Care: Employed as a colorant and opacifying agent in specific cosmetic products, such as eye shadows.
• Catalyst and Intermediate: Serves as a catalyst precursor or intermediate in select organic synthesis and chemical reactions.

Basic Information

Product Name	Cupric Stearate
CAS No.	660-60-6
Molecular Formula	C36H70CuO4
Molecular Weight	630.48 g/mol
Synonyms	Copper(II) stearate; Copper distearate; Stearic acid, copper salt; Copper dioctadecanoate; Cupric octadecanoate; Copper(2+) stearate; Dibasic copper stearate
EINECS	211-540-6

Quality Control

Our Cupric Stearate is produced under a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, heavy metal limits, and loss on drying, to meet relevant industrial and technical grade specifications. A Certificate of Analysis (COA) documenting all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or direct light should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Light blue to bluish-green powder
Identification (IR)	Conforms
Assay (Cu content)	Min. 10.0 %
Loss on Drying	Max. 2.0 %
Acid Value	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Melting Point	Approx. 120 - 130 °C
Particle Size (Typical)	Passes through 200 mesh

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