Stearic Acid
A versatile fatty acid used as a key emulsifier and thickener in creams, lotions, soaps, and candles. Essential for creating stable emulsions in personal care formulations.
| Chemical Formula | CH₃(CH₂)₁₆COOH |
| CAS Number | 57-11-4 |
| Grade | Industrial / Cosmetic |
| Appearance | White waxy solid |
| Purity | 95% min |
| Origin | Malaysia / Indonesia |
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Stearic acid is a saturated long-chain fatty acid widely used across personal care, cosmetics, candle making, and industrial manufacturing. It acts as an emulsifier, thickening agent, and hardener in a broad range of formulations.
In personal care, stearic acid is a cornerstone ingredient for creams, lotions, body butters, and soaps. It helps stabilize oil-in-water emulsions, giving products a smooth, luxurious texture while improving shelf stability. It is also commonly used in shaving creams and conditioners.
Beyond cosmetics, stearic acid finds application in candle production (improving opacity and burn quality), rubber manufacturing (as a processing aid and vulcanization activator), and plastics (as a lubricant and mould release agent). Its versatility makes it one of the most frequently ordered raw materials on the Chemcenta platform.
| Melting Point | 69.3 °C (156.7 °F) |
| Acid Value | 196 – 211 mg KOH/g |
| Iodine Value | ≤ 2.0 g I₂/100g |
| Saponification Value | 197 – 215 mg KOH/g |
| Moisture Content | ≤ 0.5% |
| Colour (Lovibond) | ≤ 3.0 R |
- Store in a cool, dry, and well-ventilated area away from direct sunlight and heat sources.
- Keep containers tightly sealed when not in use to prevent moisture absorption and contamination.
- Recommended storage temperature: below 40 °C (104 °F).
- Use appropriate personal protective equipment (PPE) including gloves and safety glasses when handling.
- Avoid generating and inhaling dust. Use in well-ventilated areas or with local exhaust ventilation.
- In case of skin contact, wash with soap and water. In case of eye contact, flush with clean water for at least 15 minutes.
- Not classified as hazardous for transport. Shelf life is typically 24 months when stored correctly.
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