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Stearic Acid
Stearic Acid is a saturated long-chain fatty acid, appearing as a white, waxy solid with a mild, characteristic odor. It is a naturally occurring substance found in animal and vegetable fats and oils. As one of the most common fatty acids, it is a fundamental building block in the manufacture of a vast array of consumer and industrial products. Its key functions include use as a lubricant, softener, thickener, and emulsifier, making it an indispensable ingredient in industries ranging from plastics and rubber to cosmetics and food.
Stearic Acid
Primary Uses
- Plastics & Polymer Manufacturing
- Used as a powerful lubricant and release agent during PVC and other polymer processing, preventing sheets from sticking to equipment.
- Acts as a plasticizer and flow enhancer.
- Rubber Processing
- Serves as a softening agent and plasticizer, improving the plasticity and processability of rubber compounds.
- Acts as a vulcanization activator.
- Cosmetic & Personal Care
- Used as an emollient, thickener, and opacifying agent in creams, lotions, and soaps.
- Helps stabilize emulsions and provides a smooth, luxurious texture.
- Pharmaceuticals
- Employed as a tablet lubricant and binder in solid dosage formulations, ensuring efficient production and consistent drug release.
- Food & Beverage
- Used as a binder, emulsifier, and anti-caking agent in food products (e.g., chewing gum, confectionery).
Secondary Uses
- Candles
- Used to harden candles and control their burning rate.
- Metalworking
- Used in the formulation of lubricants and processing aids for metal drawing and extrusion.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Octadecanoic acid
- Common/Trade Name: Stearic Acid
- CAS Number: 57-11-4
- HS Code: 2915.70
- Synonyms: n-Octadecanoic acid, C18:0
2. Physical & Chemical Properties
- Physical State: Solid, crystalline flakes or powder
- Color & Odor: White; mild, characteristic fatty odor
- Melting Point: ~69-71°C
- Boiling Point: ~361°C
- Density: ~0.94 g/cm³
- Solubility: Soluble in alcohols, ethers, chloroform; insoluble in water.
3. Safety & Hazard Attributes
- GHS Classification: May be classified as causing skin irritation (Category 2) and serious eye irritation (Category 2A).
- Toxicity: Considered non-toxic. Low ingestion hazard.
- Exposure Limits: Not typically established. Avoid dust formation.
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area away from strong oxidizers.
- Container Type: Bags, boxes, or drums.
- Shelf Life: Excellent stability if stored properly.
- Handling Precautions: Use with adequate ventilation. Minimize dust generation. Use gloves and safety glasses.
5. Regulatory & Compliance Attributes
- FDA Status: Generally Recognized As Safe (GRAS) as a direct food additive.
- Complies with other relevant regulations (REACH, etc.).
6. Environmental & Health Impact
- Biodegradability: Readily biodegradable.
- Ecotoxicity: Low ecotoxicity.
- Bioaccumulation: Low potential for bioaccumulation.
Safety Handling Precautions
- PPE Required: Safety glasses, gloves.
- Handling Guidelines: Good general ventilation is sufficient.
First Aid Measures
- Inhalation: Move to fresh air.
- Skin Contact: Wash thoroughly with soap and water.
- Eye Contact: Flush with plenty of water for several minutes. Seek medical advice if irritation persists.
- Ingestion: Rinse mouth. Drink plenty of water. Seek medical attention if feeling unwell.
Firefighting Measures
- Fire Hazards: Combustible solid. Dust can form explosive mixtures with air.
- Extinguishing Media: Use water spray, foam, dry chemical, or CO₂.
Related products
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This gentle, skin-friendly oil is suitable for sensitive skin and is commonly employed in after-sun products, healing ointments, massage oils, and anti-aging creams. It provides hydration, calms irritation, and promotes skin regeneration while adding emollient and conditioning benefits.
Ceto Stearyl Alcohol
Ceto Stearyl Alcohol 1618TA is a high-quality fatty alcohol blend primarily composed of cetyl (C16) and stearyl (C18) alcohols. It appears as a white, waxy solid or flakes with a mild fatty odor. This blend is widely used as an emollient, thickener, and co-emulsifier in cosmetic, pharmaceutical, and industrial formulations. Ceto Stearyl Alcohol 1618TA offers excellent lubricity, thickening, and stabilizing properties, enhancing the texture, consistency, and moisturizing characteristics of creams, lotions, and hair care products. It serves as a skin conditioning agent and contributes to the structural integrity of emulsions.
Cetyl Alcohol
Cetyl Alcohol, also known as 1-Hexadecanol or Palmityl Alcohol, is a fatty alcohol derived primarily from natural sources such as palm oil and coconut oil. It appears as a waxy, white to pale yellow solid with a faint fatty odor. Cetyl Alcohol is widely used in cosmetic, pharmaceutical, and industrial formulations due to its emollient, emulsifying, thickening, and stabilizing properties. It helps improve texture, consistency, and moisturizing effects in personal care products. Cetyl Alcohol is compatible with many ingredients, making it a versatile multifunctional ingredient.
Cetyl Palmitate
Cetyl Palmitate is a naturally derived ester formed by the reaction of cetyl alcohol and palmitic acid. It appears as a white to off-white waxy solid with a mild fatty odor. This compound is widely used in cosmetic, pharmaceutical, and industrial formulations for its emollient, thickening, and texture-enhancing properties. Cetyl Palmitate imparts a smooth, creamy feel to products and contributes to improved stability and consistency in creams, lotions, balms, and ointments. Its film-forming and skin-conditioning attributes make it a preferred ingredient in personal care products as well as in specialty industrial applications.
Coffee Butter
Coffee Butter is a natural, plant-derived fat extracted primarily from the coffee seed pulp or coffee cherry, sometimes from the coffee bean itself. It is a creamy, pale yellow to light brown solid at room temperature with a mild coffee aroma. Coffee Butter is rich in fatty acids, antioxidants, and vitamins, making it a valuable ingredient in cosmetics, skincare, and specialty food products. Known for its emollient, moisturizing, and antioxidant properties, Coffee Butter helps to nourish and protect the skin while providing a pleasant sensory experience. It is gaining popularity as a sustainable by-product of coffee processing, contributing to zero-waste initiatives.
Dimethicone Silicon Oil
Dimethicone Silicon Oil, also known as polydimethylsiloxane (PDMS) or silicone oil, is a clear, odorless, and non-volatile silicone-based polymer widely used for its lubricating, anti-foaming, water-repellent, and skin-conditioning properties. It is a linear silicone polymer composed of repeating dimethylsiloxane units. Dimethicone exhibits excellent thermal stability, chemical inertness, and low surface tension, making it highly versatile in pharmaceutical, cosmetic, personal care, industrial, and food applications. It is available in various viscosities, from very low to high viscosity oils, enabling tailored formulations.
Isopropyl Palmitate
Isopropyl Palmitate IPP is a clear, colorless to pale yellow oily liquid formed by the esterification of isopropyl alcohol and palmitic acid. It has a mild odor and is widely used in cosmetic, pharmaceutical, and industrial formulations as an emollient, lubricant, and solvent. IPP is valued for its excellent skin absorption, non-greasy feel, and ability to improve texture and spreadability of topical products.
Oleic Acid
Oleic Acid is a naturally occurring monounsaturated fatty acid commonly derived from vegetable oils such as olive, sunflower, and canola oils. This oily liquid is widely used in the chemical, pharmaceutical, cosmetic, and food industries due to its excellent emollient, surfactant, and stabilizing properties. Oleic Acid 75% is a key raw material in manufacturing soaps, detergents, lubricants, and personal care products. Its amphiphilic nature makes it an effective emulsifier and penetration enhancer.
