Product Description of Oleic Acid CAS#112-80-1
Oleic acid is insoluble in water but soluble in benzene and chloroform, and it is fully miscible with methanol, ethanol, ether, and carbon tetrachloride. Its double bonds make it prone to oxidation in air, which can cause yellowing and an unpleasant odor. It can be converted into oleic acid when treated with nitrogen oxides, nitric acid, mercurous nitrate, or sulfurous acid, and hydrogenation transforms it into stearic acid. The double bonds also readily react with halogens to produce halogenated stearic acid.
Oleic acid is typically obtained from olive oil or lard through steam distillation, crystallization, or extraction following hydrolysis. It is an excellent solvent for oils, fatty acids, and other oil-soluble substances. Its applications include the production of soaps, lubricants, flotation agents, ointments, and oleates.
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Oleic acid Chemical Properties
Melting point | 13-14 °C(lit.) |
Boiling point | 360 °C |
density | 0.89 g/mL at 25 °C(lit.) |
vapor density | 1.03 (vs air) |
vapor pressure | 52 mm Hg ( 37 °C) |
refractive index | n20/D 1.377 |
FEMA | 2815 | OLEIC ACID |
Fp | 133 °F |
storage temp. | -20°C |
solubility | Miscible with ethanol, ether, acetone, chloroform, dimethyl formamide and dimethyl sulfoxide. |
form | Liquid |
pka | pKa 5.35(H2O,t =25) (Uncertain) |
Specific Gravity | 0.892 (20/4℃) |
color | Colorless to pale yellow |
Odor | Peculiar Lard-Like |
Odor Type | fatty |
Water Solubility | negligible |
Sensitive | Air Sensitive |
Merck | 146828 |
JECFA Number | 333 |
BRN | 1726542 |
Hydrophilic-Lipophilic Balance (HLB) | 1 |
Dielectric constant | 2.5（20℃） |
Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, aluminium. |
InChIKey | ZQPPMHVWECSIRJ-KTKRTIGZSA-N |
LogP | 7.698 (est) |
CAS DataBase Reference | 112-80-1(CAS DataBase Reference) |
NIST Chemistry Reference | 9-Octadecenoic acid (Z)-(112-80-1) |
EPA Substance Registry System | Oleic acid (112-80-1) |
Safety Information
Hazard Codes | T,Xi |
Risk Statements | 23/24/25-34-40-43-36/37/38-38 |
Safety Statements | 36/37-37/39-26-36-36/37/39 |
RIDADR | UN 1198 3/PG 3 |
WGK Germany | 2 |
RTECS | LP8925000 |
F | 10 |
Autoignition Temperature | 363°C |
TSCA | Yes |
HS Code | 29161500 |
Hazardous Substances Data | 112-80-1(Hazardous Substances Data) |
Toxicity | LD50 i.v. in mice: 230±18 mg/kg (Or, Wretlind) |
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Product Applications of Oleic Acid CAS#112-80-1
Oleic acid is a versatile organic chemical raw material with a wide range of applications:
Chemical Raw Material – It can be epoxidized to produce epoxy oleate, a plasticizer, or oxidized to produce azelaic acid, which is used in polyamide resin production.
Industrial and Agricultural Use – Oleic acid serves as an emulsifier in pesticides, printing and dyeing auxiliaries, industrial solvents, metal mineral flotation agents, and release agents. It is also used as a raw material for carbon paper, ballpoint pen ink, and typewriter wax paper.
Oleate Derivatives – Various oleate compounds derived from oleic acid are widely used. As a chemical reagent, oleic acid is applied in chromatography and biochemical research to detect elements such as calcium, copper, magnesium, and sulfur.
Plastic, Fiber, and Textile Applications – It is used to produce plasticizers, engineering plastics, synthetic fibers, nylon 8 and 9, softeners, wood preservatives, leather auxiliaries, textile oil additives, and finishing agents.
Detergents and Cosmetics – Oleic acid is utilized in synthetic detergents, detergent soaps, emulsifier S-80, and various cosmetic surfactants and dispersants.
Printing, Adhesives, and Mineral Processing – It can act as a solvent in printing inks and composite glues, and as a collector or demulsifier in mineral processing.
Lubricants and Metal Processing – Oleic acid is applied in gear oils, rolling oils, hydraulic oils, and metal cutting oils. Its sodium or potassium salts are key ingredients in soaps, with pure sodium oleate providing excellent detergency and emulsifying properties.
Metal Salts Applications – Lead, manganese, and cobalt salts act as paint driers; copper salts serve as fishing net preservatives; aluminum salts are used in fabric waterproofing and as thickeners for certain lubricants. Other metal salts of oleic acid are used in polishing agents, and barium salt can function as a rodenticide.
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