112-80-1
Product Name:
Oleic acid
Formula:
C18H34O2
Synonyms:
Oleic acid;OlAc;cis-9-Octadecenoic acid;cis-9-Octadecenoic Acid, 18:1;Elainic acid
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Oleic acid is a colorless to pale yellow liquid with a mild odor. Floats on water. (USCG, 1999) |
|---|---|
| Color/Form | Colorless or nearly colorless liq (above 5-7 °C) |
| Odor | PECULIAR LARD-LIKE ODOR |
| Taste | PECULIAR LARD-LIKE TASTE |
| Boiling Point | 547 °F at 100 mmHg (NTP, 1992) |
| Melting Point | 61.3 °F (NTP, 1992) |
| Flash Point | 372 °F (NTP, 1992) |
| Solubility | Insoluble (NTP, 1992) |
| Density | 0.89 at 77 °F (USCG, 1999) - Less dense than water; will float |
| Vapor Pressure | 0.00000055 [mmHg] |
| LogP | log Kow = 7.64 |
| Stability/Shelf Life | ON EXPOSURE TO AIR, ESPECIALLY WHEN IMPURE, IT OXIDIZES & ACQUIRES YELLOW TO BROWN COLOR & RANCID ODOR |
| Autoignition Temperature | 685 °F (USCG, 1999) |
| Decomposition | When heated to decomposition it emits acrid smoke and irritating fumes. |
| Viscosity | 25.6 cP at 30 °C |
| Heat of Combustion | At constant volume; delta Ec = -2.663.9 kcal/mol at 25 °C |
| Heat of Vaporization | 16.1 kcal/mol at boiling |
| Surface Tension | 32.8 dyne/cm at 20 °C; 27.94 dyne/cm at 90 °C; 21.6 dyne/cm at 180 °C |
| Refractive Index | Index of refraction: 1.463 at 18 °C/D; 1.4585 at 26 °C/D |
| Dissociation Constants | pKa = 5.02 in aqueous solution at 25 °C |
| Collision Cross Section | 176.43 Ų [M-H]- [CCS Type: DT; Buffer gas: N2; Sample Type: Human bronchoalveolar lavage fluid (BALF); Dataset: Unambiguous Lipids] |
| Kovats Retention Index | 2113 2171 2116 2152 2175 2090 2098 2180 2180 2091.3 |
| Other Experimental Properties | Iodine number: 89.9; acid value: 198.6; solidification at 4 °C to crystalline mass. On exposure to air, especially when impure, it oxidizes and acquires a yellow to brown color and rancid odor. |
| Chemical Classes | Lipids -> Unambiguous Lipids |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H320:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P321:Specific treatment (see … on this label). P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. |
COMPUTED DESCRIPTORS
| Molecular Weight | 282.5 g/mol |
|---|---|
| XLogP3 | 6.5 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 15 |
| Exact Mass | 282.255880323 g/mol |
| Monoisotopic Mass | 282.255880323 g/mol |
| Topological Polar Surface Area | 37.3 Ų |
| Heavy Atom Count | 20 |
| Formal Charge | 0 |
| Complexity | 234 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 1 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Oleic acid is a colorless to pale yellow liquid with a mild odor. Floats on water. (USCG, 1999)