Finoric LLC

Oleic Acid

Oleic Acid USP NF BP FCC Food Grade Supplier, Manufacturer's Representative

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DESCRIPTION

Oleic Acid

Oleic acid is a fatty acid that occurs naturally in various animal and vegetable fats and oils. It is an odorless, colorless oil, although commercial samples may be yellowish. In chemical terms, oleic acid is classified as a monounsaturated omega-9 fatty acid, abbreviated with a lipid number of 18:1 cis-9. It has the formula CH3(CH2)7CH=CH(CH2)7COOH. The term "oleic" means related to, or derived from, oil of olive, the oil that is predominantly composed of oleic acid. Oleic acid is an unsaturated fatty acid that is the most widely distributed and abundant fatty acid in nature. It is used commercially in the preparation of oleates and lotions, and as a pharmaceutical solvent.

Oleic Acid USP NF Grade
C18H34O2 282.46
9-Octadecenoic acid, (Z)-. CAS Number 112-80-1.

Oleic Acid is manufactured from fats and oils derived from edible sources, animal or vegetable, and consists chiefly of (Z)-9-octadecenoic acid [CH3(CH2)7CH:CH(CH2)7COOH]. It may contain suitable stabilizers.
NOTE: Oleic Acid labeled solely for external use is exempt from the requirement that it be prepared from edible sources.
Labeling: If it is for external use only, the labeling so indicates. Label it to indicate whether it is
derived from animal or vegetable sources. Indicate the names and quantity of any added stabilizers.
Specific gravity: between 0.889 and 0.895.
Congealing temperature: between 3 and 10 for Oleic Acid derived from animal sources; between 10 and 16 for Oleic Acid derived from vegetable sources.
Acid value: between 196 and 204, about 2 g, accurately weighed, being used.
Iodine value: between 85 and 95.
Residue on ignition: not more than 1 mg (about 0.01%), from a 10-mL portion.
Mineral acids: Shake 5 mL with an equal volume of water at a temperature of about 25 for 2 minutes, allow the liquids to separate, and filter the water layer through a paper filter previously moistened with water: the filtrate is not reddened by the addition of 1 drop of methyl orange.
Neutral fat or mineral oil: Boil 1 mL with about 500 mg of sodium carbonate and 30 mL of water in a 250-mL flask: the resulting solution, while hot, is clear or, at most, opalescent.

Oleic Acid BP Grade
Ph Eur
Formula: C18H34O2
Weight: 282.5
CAS Number: 112-80-1
Action and use: Excipient.

DEFINITION
(Z)-Octadec-9-enoic acid (C18H34O2; Mr 282.5), together with varying amounts of saturated and other unsaturated fatty acids. A suitable antioxidant may be added.
Content: 65.0 per cent to 88.0 per cent of C18H34O2.

CHARACTERS
Appearance: Clear, yellowish or brownish, oily liquid.
Solubility: Practically insoluble in water, miscible with alcohol and with methylene chloride.
Relative density: About 0.892.

IDENTIFICATION
A. It complies with the test for acid value (see Tests).
B. It complies with the test for iodine value (see Tests).
C. It complies with the test for composition of fatty acids (see Tests).
Margaric acid: Maximum 0.2 per cent for oleic acid of vegetable origin and maximum 4.0 per cent for oleic acid of animal origin.

TESTS
Appearance: The substance to be examined is not more intensely coloured than reference solution.
Acid value: 195 to 204, determined on 0.5 g.
Iodine value: 89 to 105.
Peroxide value: Maximum 10.0.
Composition of fatty acids by Gas chromatography:
myristic acid: maximum 5.0 per cent;
palmitic acid : maximum 16.0 per cent;
palmitoleic acid : maximum 8.0 per cent;
stearic acid : maximum 6.0 per cent;
oleic acid : 65.0 per cent to 88.0 per cent;
linoleic acid : maximum 18.0 per cent;
linolenic acid : maximum 4.0 per cent;
fatty acids of chain length greater than C18: maximum 4.0 per cent.
Total ash: Maximum 0.1 per cent, determined on 2.00 g.

LABELLING
The label states the origin of oleic acid (animal or vegetable).

Oleic Acid FCC Food Grade
(Z)-9-Octadecenoic Acid
CH3(CH2)7CH CH(CH2)7COOH
C18H34O2 Formula wt 282.47
CAS Number 112-80-1

DESCRIPTION
Oleic Acid occurs as a colorless to pale yellow, oily liquid when freshly prepared, but upon exposure to air it gradually absorbs oxygen and darkens. It is an unsaturated acid obtained from fats. When strongly heated in air, it decomposes and produces acrid vapors. Its specific gravity is about 0.895. It is practically insoluble in water, but is miscible with alcohol, with ether, and with fixed and volatile oils.
Function: Component in the manufacture of other food grade additives; defoaming agent; lubricant; binder.

REQUIREMENTS
Acid Value: Between 196 and 204.
Iodine Value: Between 83 and 103.
Lead: Not more than 0.1 mg/kg.
Residue on Ignition: Not more than 0.01%.
Saponification Value: Between 196 and 206.
Titer (Solidification Point): Not above 10°.
Unsaponifiable: Matter Not more than 2.0%.
Water: Not more than 0.4%.

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