Oleic Acid
INCI Oleic Acid. Saponified with NaOH it is listed as Sodium Oleate, with KOH as Potassium Oleate. Also: cis-9-Octadecenoic acid, C18:1 fatty acid, Oleic acid 70-75% (vegetable), Oleic acid NF.
Published values
| Saponification value | 197–207 mg KOH/g (typ. 197) |
| Used by the calculator | 197.0 mg KOH/g (typical) |
| SAP for NaOH | 0.1404 g/g |
| Iodine value | 88–96 g I₂/100 g (typ. 90) |
| INS (SAP − IV) | 107 |
| Melting point | — |
| Unsaponifiable matter | 0.3 % |
A bar made of 100 % Oleic Acid
Conventional qualities summed from the fatty-acid groups; a single-oil bar is a reference point, not a recipe.
Fatty-acid profile
| Fatty acid | Published range, % | Used | |
|---|---|---|---|
| Palmitic acid | C16:0 · saturated | 0.2 | 0.2 |
| Stearic acid | C18:0 · saturated | 2.4 | 2.4 |
| Oleic acid | C18:1 | ≥ 70 | 88.0 |
Where these numbers come from
Brochure PDF (uploaded 2012), fractionated fatty acids table columns OA-7075 and OA-7070: AV 195-205, SAP 197-207, IV 90 min / 88-96, titre 9 / 10 C max. Text extracted with pdftotext; the extracted table rows are offset by one line, and the mapping was validated against Wilmar's MA-1498 and PA-1698 product pages, which print the same numbers.
Typical-value table: saponification number 197 mg KOH/g (ASTM D464), iodine number 90 cg I/g (Wijs), titer 11 C, unsaponifiables 0.3 %, oleic 88 %, stearic 2.4 %, palmitic 0.2 %, conjugated acids 1.3 %. Text extracted with pdftotext.
Acid value 199-204 mg KOH/g, iodine value 88-95, titer 5 C max, C18 68-72 % (213 NF) / 68-73 % (221 NF).
Commercial oleic acid ranges from ~70 % C18:1 (tallow- or palm-derived) to ~88-90 % (high-purity/tall-oil). Ranges (min/max) come from Wilmar's producer brochure for WILFARIN OA-7070 (Oleic Acid Vegetable Based, C18:1 70 %) and OA-7075 (C18:1 75 %): acid value 195-205 mg KOH/g, saponification value 197-207 mg KOH/g, iodine value 88-96 g/100 g (OA-7070; OA-7075: 90 min), titre 10 C max (OA-7070) / 9 C max (OA-7075). 'Typical' values and the fatty-acid breakdown come from Synthomer's PAMOLYN 100 Oleic Acid TDS (rev. 24.03.2025, tall-oil derived): saponification number 197 mg KOH/g, iodine number 90 cg I/g, titer 11 C, unsaponifiables 0.3 %, oleic acid (C18:1) 88 %, stearic (C18:0) 2.4 %, palmitic (C16:0) 0.2 %, conjugated acids incl. C18:2 linoleic 1.3 % (not mapped to 'linoleic' because it is a conjugated-acid total). Emery's EMERSOL 213 NF / 221 NF (tallow oleic acid) give acid value 199-204, iodine value 88-95, titer 5 C max, C18 68-73 % (additional source, no SAP). Free fatty acid: SAP is essentially the acid value; use directly for lye calculation. The oleic 'min 70' is the OA-7070 product description (C18:1 70 %), which sits in the brochure composition table whose text-extracted rows are offset; treat as the nominal grade rather than a verified GC limit. INCI and salt names are the standard CosIng entries, not re-verified on CosIng in this session.
This record is part of the open ingredient database (ODbL). Found an error or a better primary source? The dataset is on GitHub; corrections with a document link are welcome.