Stearic Acid
- CAS No.57-11-4
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
Premium grade Stearic Acid (CAS 57-11-4) designed for pharmaceutical intermediates, rubber vulcanization, and cosmetic formulations. Reliable bulk supply with comprehensive COA.
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Product Overview
Stearic acid, chemically known as Octadecanoic acid, is a saturated long-chain fatty acid that plays a pivotal role in various industrial and pharmaceutical applications. As a fundamental chemical intermediate, it is widely recognized for its versatility and stability. Our high-purity Stearic Acid is manufactured under strict quality control standards to ensure consistency across batches. This product serves as a critical building block in the synthesis of complex organic compounds and is essential for formulators seeking reliable performance in their final products.
The material presents as a white crystalline solid with a mild odor, characteristic of high-grade fatty acids. Its physical properties, including a specific melting point range and low water solubility, make it ideal for use in hydrophobic formulations. We prioritize industrial purity to meet the demanding requirements of global manufacturers in the rubber, cosmetic, and pharmaceutical sectors.
Key Specifications
Quality assurance is paramount in our manufacturing process. Each batch undergoes rigorous testing to verify compliance with factory standards and international specifications. The following table outlines the critical analytical parameters for our Stearic Acid supply.
| Items of Analysis | Standard of Analysis | Test Results |
|---|---|---|
| Appearance | White or off-white powder or crystalline solid | White crystalline solid |
| Identification | GC | Conforms |
| Iodine Value (gI/100g) | ≤4 | 0.26 |
| Acid Value (mgKOH/g) | 203-210 | 208.7 |
| Residue on Ignition | ≤0.1% | Conforms |
| Nickel (Ni) | ≤0.1ppm | Conforms |
| Heavy Metal | ≤5ppm | Conforms |
| Microbial Total Plate Count | ≤1000cfu/g | Conforms |
| Assay (Stearic Acid) | ≥40.0% | 52.0% |
| Assay (Stearic & Palmitic Acid) | ≥90.0% | 98.1% |
Industrial Applications
The utility of Stearic Acid extends across multiple high-value industries. In the rubber industry, it functions as an activator for vulcanization accelerators, enhancing the durability and performance of both high-grade and general rubber products. Its role as a lubricating and polishing agent is also well-documented in textile and leather processing.
In the cosmetic and personal care sector, Stearic Acid is a primary raw material for vanishing creams, cold creams, and soap-based stabilizers. It provides structure and emulsifying properties to formulations. Furthermore, it is utilized in the production of high melting point greases and waterproofing agents. Pharmaceutical manufacturers rely on this intermediate for various excipient roles, ensuring stability and efficacy in drug delivery systems.
- Activator for rubber vulcanization accelerators.
- Raw material for cosmetic creams and stabilizers.
- Component in polishing pastes and waterproofing agents.
- Essential intermediate for pharmaceutical synthesis.
- Lubricant for textiles, printing, and dyeing processes.
Storage and Stability
Stearic Acid is stable under normal temperatures and pressures, facilitating easy handling and storage. To maintain optimal quality, we recommend storing the product in a cool, dry environment, ideally between 2-8 degrees Celsius. The material should be kept in tightly closed containers to prevent contamination from moisture or foreign particles. With a flash point greater than 230 degrees Fahrenheit, it presents a low fire hazard under standard handling conditions. Proper storage ensures the longevity of the product's physical and chemical properties, guaranteeing performance upon use.
