Calcium Stearate

Calcium Stearate is a versatile white powder commonly used as a lubricant, release agent, and stabilizer in various industries, including plastics, pharmaceuticals, and cosmetics. It is the calcium salt of stearic acid, with the chemical formula Ca(C₁₈H₃₅O₂)₂, and is known for its non-toxic properties and compatibility with many materials.

Technical Specifications

Packaging and Storage

• Woven bag lined with high pressure PE film, 20kg/bag or follow customer’s packaging instruction.
• Should be stored in a well-closed container in a cool, dry place.

Benefits and Advantages

Processing Efficiency:
Reduces friction in machinery, leading to lower energy consumption and extended equipment life.

Product Stability:
Prevents agglomeration and moisture absorption, enhancing shelf life in powdered goods.

Non-Toxicity:
Derived from natural fatty acids, it offers a safer alternative to metallic soaps like zinc stearate in sensitive applications.

Cost-Effectiveness:
Widely available and economical, with global production exceeding 100,000 metric tons annually.

Environmental Considerations:
Biodegradable under aerobic conditions, though recycling and proper disposal are recommended to minimize environmental impact.

Applications of Calcium Stearate

Calcium Stearate enhances processing in multiple sectors:

Plastics and Rubber:
Acts as a lubricant and release agent, reducing friction and improving mold release. Benefits include better dispersion and heat stability.

Food and Pharmaceuticals:
Prevents caking in powders and aids tablet production. It ensures consistency and flow.

Construction and Coatings:
Provides water repellency and durability.

Frequently Asked Questions (FAQs)

What is Calcium Stearate used for?
It is primarily used as a lubricant, stabilizer, and release agent in industries like plastics, pharmaceuticals, cosmetics, and food processing. It improves flowability, prevents sticking, and enhances waterproofing in various products.

Is Calcium Stearate safe for human consumption?
Yes, it is generally recognized as safe (GRAS) by the FDA for use in food and pharmaceuticals at approved levels. However, excessive inhalation of dust should be avoided, and it is not intended for direct consumption in large quantities.

How does Calcium Stearate compare to other stearates like magnesium or zinc stearate?
It offers better heat stability than magnesium stearate but lower lubricating efficiency than zinc stearate in some applications. Selection depends on the specific requirements, such as compatibility with PVC (where calcium excels) or rubber (where zinc may be preferred).

Can Calcium Stearate be used in vegan products?
Yes, vegetable-derived Calcium Stearate is available, sourced from plant-based stearic acid (e.g., from palm or soy oil), making it suitable for vegan and halal certificationsn.

What are the storage recommendations?
Store in a cool, dry place away from moisture and direct sunlight, ideally in sealed containers to prevent caking.

Where can I buy Calcium Stearate?

You can buy Calcium Stearate from reputable suppliers. Contact us via email [email protected] for an offer.