CAS: 143-07-7
Alias: Dodecanoic acid; 1-Dodecanecarboxylic acid
Molecular formula: C₁₂H₂₄O₂
Relative molecular mass: 200.32
Structural formula:
1. Product Property
Lauric acid, also known as dodecanoic acid, is a saturated fatty acid with 12 carbon atoms. At room temperature, it is a white needle-like crystal with a slight odor of lauric oil. It is insoluble in water but soluble in organic solvents such as methanol, ether, and chloroform, and slightly soluble in acetone and petroleum ether. Although it is called lauric acid, it only accounts for 1-3% of the lauric acid content in lauric oil. Currently, plants with high levels of lauric acid in their oils include coconut oil (45-52%), oil palm seed oil (44-52%), and babassu seed oil (43-44%). Although lauric acid is a saturated fatty acid, its risk of cardiovascular diseases is lower than that of other saturated fatty acids.
2. Quality Standard
| Parameter | Specification |
| Appearance | White, solid |
| Purity (% GC) | ≥ 99.5 |
| Acid value (mg KOH/g) | ≤ 0.5 |
| Free fatty acids (% max) | ≤ 0.2 |
| Iodine value (WI) | ≤ 5.0 |
| Moisture (% max) | ≤ 0.1 |
| Saponification value | 254-260 |
| Refractive index (20°C) | 1.4300-1.4320 |
3. Application Scope and Usage
Lauric acid is widely used in the soap and detergent industry for its high foaming properties and biodegradability. It is also used as a raw material in the production of various surfactants and emulsifiers. In the food industry, it serves as a flavoring agent and an emulsifier. Additionally, lauric acid is utilized in the cosmetics industry for its moisturizing and cleansing properties, contributing to skin and hair care products.
4. Package and Storage
Lauric acid is typically packaged in 25 kg or 50 kg plastic-lined steel drums or in 1 kg plastic bags. It should be stored in a cool, dry, and well-ventilated warehouse, away from direct sunlight and heat sources. The storage area should be free from moisture and should have a temperature control system to maintain the product’s quality. It is essential to ensure that the packaging is intact and sealed properly to prevent contamination and exposure to air.
