Oleic acid
CAS 112-80-1
EC 204-007-1
Formula C18H34O2
MW 30.03 g/mol
Surfactants Personal Care & CosmeticsLubricants & MetalworkingFood & NutritionTextile, Leather & Paper Surface Modification & WettingEmulsification & DispersionLubricationFlavoring & Acidulant
Description
Oleic acid (CAS 112-80-1) is a monounsaturated fatty acid derived from animal or vegetable fats, commercially available under trade names including Wecoline OO and Pamolyn 100, and abbreviated as C18:1 n-9. It is classified under HS code 29161500 and is subject to REACH registration within the EU.
In personal care formulations, oleic acid acts as an emollient and skin-conditioning agent by integrating into the lipid bilayer and reducing transepidermal water loss. In metalworking and lubricant applications, it forms a boundary lubrication film on metal surfaces through polar adsorption, reducing friction and wear. Food-grade material serves as a flavorant and processing aid in fat-based systems.
Oleic acid is supplied in food-grade (FCC-compliant) and cosmetic-grade specifications, with Ph.Eur.-grade available for pharmaceutical applications. All material placed on the EU market is covered under REACH. Typical packaging includes drums and IBC containers, with bulk tanker quantities available for high-volume procurement.
In personal care formulations, oleic acid acts as an emollient and skin-conditioning agent by integrating into the lipid bilayer and reducing transepidermal water loss. In metalworking and lubricant applications, it forms a boundary lubrication film on metal surfaces through polar adsorption, reducing friction and wear. Food-grade material serves as a flavorant and processing aid in fat-based systems.
Oleic acid is supplied in food-grade (FCC-compliant) and cosmetic-grade specifications, with Ph.Eur.-grade available for pharmaceutical applications. All material placed on the EU market is covered under REACH. Typical packaging includes drums and IBC containers, with bulk tanker quantities available for high-volume procurement.
Physical Properties
| Melting Point | 16.3 °C |
| Boiling Point | 286 °C @ Press: 100 Torr |
| Density | 0.895 g/cm³ @ Temp: 25 °C |
| Flash Point | 133 °F |
| Appearance | colourless to light yellow viscous liquid |
| Color | Colorless to pale yellow |
| Odor | Peculiar Lard-Like |
| Form | Liquid |
| Water Solubility | negligible |
| Vapor Pressure | 52 mm Hg ( 37 °C) |
| Refractive Index | n 20/D 1.377 |
| Log P | 7.698 (est) |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319
P
P264P280P321P264+P265P302+P352P332+P317P337+P317P362+P364P305+P351+P338
Trade & Regulatory
| HS Code | 29161500 |
| UN Number | 1198 |
| ADR Class | 3 |
| Packing Group | III |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 2 |
Other Names
(Z)-octadec-9-enoic acid18:1 n-9C18:1 n-9C18:1(n-9)Wecoline OOPamolyn 100ALDEHYDE C1
Related Products
Raw Materials
Derivatives
Need a chemical? Get a quote within 24 hours.