CAS: 112-92-5
Alias: Octadecan-1-ol; Stearyl Alcohol; n-Octadecyl Alcohol
Molecular formula: C18H38O
Relative molecular mass: 270.49
Structural formula:
1. Product Property
Stearyl alcohol is a white, waxy solid with a faint characteristic odor。 It is insoluble in water but soluble in organic solvents. This compound has a melting point of approximately 56-59°C and a boiling point of 210°C at reduced pressure。 It is used in various applications due to its emollient properties and ability to act as an emulsifier。
2. Quality Standard
| Parámetro | Especificación |
| Apariencia | White flakes or granules |
| Purity (GC area%) | ≥ 99.0% |
| Contenido en agua | ≤ 0.1% |
| Acidez (como ácido acético) | ≤ 0.01% |
| Densidad (20°C) | 0.950-0.960 g/cm³ |
| Refractive index (20°C) | 1.422-1.426 |
| Boiling range (1 atm, °C) | 185-195°C (95% volume) |
3. Ámbito de aplicación y uso
Octadecanol can be used in the production of Pingpingol, resins, synthetic rubber, and colorants for color-collecting films, etc. Antioxidant 1076 (2082-79-3) can be prepared by reacting octadecanol with β-(3, 5-di-tert-butyl-4-hydroxyphenyl) methyl propionate with sodium methoxide as the catalyst and dimethyl sulfoxide as the solvent at 130℃ for 2-3 hours. This is an excellent non-polluting and non-toxic antioxidant, widely used in polyolefins, polyamides, polyesters, polyvinyl chloride, polystyrene, ABS resins and various rubber petroleum products.
4. Embalaje y almacenamiento
Stearyl alcohol is typically packaged in 25 kg plastic-lined bags or drums。 It should be stored in a cool, dry place away from direct sunlight and moisture。 The storage area should be well-ventilated to prevent the accumulation of dust。 It is important to keep the product sealed to maintain its purity and prevent it from absorbing moisture from the air。
