


Capric Acid (also known as decanoic acid or lanolin acid) is a 10-carbon saturated medium-chain fatty acid with the molecular formula (C10H20O2) and a molecular weight of 172.26. It is a white crystalline solid at room temperature with a faint fatty acid odor. It occurs naturally in coconut oil, palm kernel oil, and milk fat, and serves as an important intermediate and raw material in the food, personal care, pharmaceutical, and chemical industries.
| Item | Specification |
| Melting Point | 27–32°C (lit.) |
| Boiling point | 270°C (at atmospheric pressure) |
| Density | 0.893 g/mL at 25°C (lit.) |
| Flash point | 110–122°C |
| Vapor pressure | N/A |
| Refractive index | 1.4169 (40°C) |
| PH | 4 (0.2 g/L, H₂O, 20°C) |
| Odor | Faint fatty acid odor; the odor is milder in the pure form |
| Solubility | Sparingly soluble in water (0.2 g/L, 20°C); readily soluble in organic solvents such as alcohols, ethers, chloroform, and benzene. |
| Stability | Stable; flammable; corrosive; reacts violently with strong oxidizing agents. |
Food Processing: Capric Acid is used to formulate fruity food flavorings, synthesize medium-chain nutritional oils, and serve as an emulsifier and preservative in food products.
Personal Care: Decanoic acid is used to prepare surfactants and moisturizing ingredients for hair care, skincare, and fragrance products.
Pharmaceutical R&D: Decanoic acid is used as an intermediate in drug synthesis; utilized to formulate topical care agents based on its antibacterial activity.
Industrial Chemistry: C10 Acid is processed into lubricants, plasticizers, and rust-inhibiting additives; also serves as a raw material for synthesizing various decanoic acid derivatives.
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