Description

Calcium Stearate is a fine, white powder widely recognized as a versatile metallic soap and lubricant. Its primary value lies in its excellent water repellency, lubricating properties, and thermal stability, making it a crucial processing aid and functional additive. This compound is essential for manufacturers in the plastics, rubber, pharmaceutical, and construction industries seeking to improve product flow, prevent sticking, and enhance final material characteristics.

Application

• Plastics & Polymers: Acts as an acid scavenger, lubricant, and release agent in PVC, polyolefins, and engineering plastics to prevent equipment corrosion and improve mold flow.
• Rubber Industry: Used as a dusting agent, processing aid, and anti-tack agent to prevent uncured rubber sheets from sticking together.
• Pharmaceuticals & Cosmetics: Serves as a tablet and capsule lubricant, glidant, and water-repellent agent in solid dosage forms and powders.
• Construction Materials: Functions as a hydrophobic agent and waterproofing additive in concrete, cement, and related building products.
• Paints & Coatings: Employed as a flatting agent and suspending aid to control gloss and prevent pigment settling.
• Paper Production: Utilized as a lubricant and sizing agent to improve paper smoothness and water resistance.
• Food Industry (Food Grade): Approved for use as an anti-caking agent, binder, and emulsifier in food products (e.g., confectionery).
• Personal Care: Found in pressed powders and makeup as a binder and texture enhancer.

Basic Information

Product Name	Calcium Stearate
CAS No.	1592-23-0
Molecular Formula	C36H70CaO4
Molecular Weight	607.03 g/mol
Synonyms	Calcium Distearate; Octadecanoic Acid, Calcium Salt; Stearic Acid, Calcium Salt; Calcium Octadecanoate; Calstar; Lubricant 18; Metasap ST 105; Synpro 15
EINECS	216-472-8

Quality Control

Our Calcium Stearate is manufactured under strict quality management systems. We offer various grades, including Industrial, Food Grade (FCC), and Pharmaceutical grades, each produced to meet specific industry standards. Every batch undergoes comprehensive analytical testing to ensure consistent purity, composition, and performance. Certificates of Analysis (COA) are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent caking or degradation due to moisture absorption. Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Fine white powder
Identification (IR)	Conforms
Assay (as CaO)	9.0 - 10.5 %
Loss on Drying	≤ 3.0 %
Free Fatty Acid (as Stearic)	≤ 3.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
Melting Point	147 - 155 °C
Mesh Size (200 mesh)	≥ 99.0 % pass

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