Palmitic Acid
INCI Palmitic Acid. Saponified with NaOH it is listed as Sodium Palmitate, with KOH as Potassium Palmitate. CAS 57-10-3; EC 200-312-9, as CosIng gives them. Also: Hexadecanoic acid, C16 fatty acid, Palmitic acid 98%.
Published values
| Saponification value | 218–221 mg KOH/g |
| Used by the calculator | 219.5 mg KOH/g (midpoint) |
| SAP for NaOH | 0.1565 g/g |
| Iodine value | ≤ 1 g I₂/100 g |
| INS (SAP − IV) | 219 |
| Melting point | — |
| Unsaponifiable matter | — |
A bar made of 100 % Palmitic Acid
Conventional qualities summed from the fatty-acid groups; a single-oil bar is a reference point, not a recipe.
How much lye
| Oil | NaOH | KOH |
|---|---|---|
| 500 g | 74.3 g(73.8–74.8) | 104.3 g(103.6–105.0) |
| 1 kg | 148.7 g(147.6–149.7) | 208.5 g(207.1–210.0) |
| 1 lb (454 g) | 67.4 g(67.0–67.9) | 94.6 g(93.9–95.2) |
| 2 lb (907 g) | 134.9 g(133.9–135.8) | 189.2 g(187.9–190.5) |
For this oil alone at 5 % superfat, with pure sodium hydroxide (NaOH) or pure potassium hydroxide (KOH); in brackets, across the published range of its saponification value. KOH is usually sold at 90 %: divide by 0.9. For a whole recipe, open the calculator.
Fatty-acid profile
Saturated : unsaturated 100 : 0
| Fatty acid | Published range, % | Used | |
|---|---|---|---|
| Myristic acid | C14:0 · saturated | ≤ 2 | 2.0 |
| Palmitic acid | C16:0 · saturated | ≥ 98 | 98.0 |
| Stearic acid | C18:0 · saturated | ≤ 2 | 2.0 |
Where these numbers come from
Specification table on the product page: acid value, saponification value, iodine value, titre, colour, fatty-acid composition limits.
Brochure PDF (uploaded 2012): PA-1698 AV 217-220, SAP 218-221, IV 0.5 max, titre 61-63 C; PA-1695 AV 217-221, SAP 218-222, IV 2 max, titre 60-63 C. Text extracted with pdftotext.
Producer specification for Wilmar WILFARIN PA-1698 (Palmitic Acid 98%): acid value 217-220 mg KOH/g, saponification value 218-221 mg KOH/g, iodine value 1.0 max (% I2 absorbed = g/100 g), titre 61-63 C, colour 0.3/3 max (Lovibond R/Y), composition C14 2 % max, C16 98 % min, C18 2 % max, others 1 % max. Free fatty acid: SAP is essentially the acid value; use directly for lye calculation. Titre 61-63 C is a solidification point rather than a melting point, so the melting point is blank. Wilmar's brochure lists the same AV/SAP for PA-1698 and a 95 % grade PA-1695 (AV 217-221, SAP 218-222, IV 2 max, titre 60-63 C). 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), which you can download as CSV or JSON. Found an error or a better primary source? Corrections with a link to the document are welcome at support@soapformulator.com.