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Oleic acid is a versatile monounsaturated fatty acid used across surfactants, lubricants, cosmetics, pharmaceuticals, rubber, plastics and food processing. Because commercial “oleic acid” covers a wide range of purities, grade selection is the key sourcing decision.
Key takeaways:
CAS 112-80-1 covers technical grades from 70–90% to high-purity ≥98.5%.
Main uses: soaps and surfactants, lubricants, cosmetics, pharma excipients, rubber, food emulsifiers.
Oleic acid is generally not classified as hazardous under GHS, but is mildly irritating and air-sensitive.
Confirm C18:1 content, analytical method, CoA and regulatory status before ordering.
Oleic acid, or cis-9-octadecenoic acid, has the formula C₁₈H₃₄O₂ and MW 282.46 g/mol. It is a colorless to pale yellow oily liquid, practically insoluble in water and miscible with ethanol, ether and acetone. Commercial oleic acid is derived from vegetable oils or animal fats by hydrolysis and distillation.
| Parameter | Technical Grade | High-Purity Grade | Food / Pharma Grade |
|---|---|---|---|
| C18:1 content | 70–90% | ≥95–98.5% | ≥98% |
| Appearance | Colorless to pale yellow | Low color | Very low color |
| Acid value | ≥196 mg KOH/g (90% grade) | Higher, grade-dependent | Meets monograph |
| Key focus | Cost and consistency | Purity and color | FCC/USP/Ph. Eur. compliance |
Note: “80% oleic acid” may mean C18:1 by GC, total fatty acid content, or another basis. Always request the full fatty acid profile and CoA.
Surfactants & soaps: soaps, shampoos, emulsifiers, industrial cleaners.
Lubricants & metalworking: lubricity additives, corrosion inhibitors, drilling fluids.
Cosmetics: emollient, emulsifier and solubilizer in creams and lotions.
Pharmaceuticals: solvent, emulsifier and excipient; reference standard.
Rubber & plastics: accelerator, activator, lubricant and release agent.
Food processing: emulsifier intermediate, defoamer, mold release agent.
Paints, textiles & leather: pigment dispersion, leveling agents, leather treatment.
| Field | Value |
|---|---|
| CAS | 112-80-1 |
| EINECS | 204-007-1 |
| HS Code | 2916.15 |
| GHS | Generally not classified as hazardous; mildly irritating to skin/eyes |
| TSCA | Listed |
| REACH | Registered substance; confirm grade/tonnage coverage |
Handling: wear gloves and eye protection; avoid strong oxidizers and aluminum; keep containers closed and away from air and moisture.
CoA per lot — C18:1 by GC, fatty acid profile, acid value, iodine value, color, moisture.
Analytical method — confirm what the headline percentage refers to.
Regulatory documents — TSCA/REACH, FCC/USP/Ph. Eur. where applicable, SDS.
Packaging — HDPE drums, IBC totes or ISO tanks; confirm liner compatibility.
Storage & shelf life — oleic acid is air-sensitive; confirm retest date.
Is oleic acid the same as omega-9?
Oleic acid is the main omega-9 fatty acid, but “omega-9” is a broader family.
Is oleic acid dangerous for shipping?
It is generally not classified as a dangerous good. It is combustible and mildly irritating.
What is the shelf life?
Typically 12–24 months in sealed original containers, depending on grade and storage.
Deshang Chemical supplies oleic acid CAS 112-80-1 in technical, high-purity and food/pharma grades, with:
Lot-specific Certificate of Analysis and full fatty acid profile
TSCA/REACH documentation and SDS support
Flexible packaging: drums, IBC totes and ISO tanks
Consistent quality for surfactants, lubricants, cosmetics and industrial formulations
Contact Deshang Chemical for a specification sheet, CoA sample and bulk quotation for your oleic acid requirement.
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