soapformulator
EN
Oils

Sesameseed Oil

INCI Sesamum Indicum Seed Oil. Saponified with NaOH it is listed as Sodium Sesameseedate, with KOH as Potassium Sesameseedate. CAS 8008-74-0; EC 232-370-6, as CosIng gives them. Also: Sesame oil, Gingelly oil, Benne oil, Til oil, Untoasted sesame seed oil.

How much lye · 1 kg · Superfat 5 %
129.0 g NaOH 181.0 g KOH 100 %

Calculate a 100 % Sesameseed Oil bar

Published values

Saponification value186–195 mg KOH/g
Used by the calculator190.5 mg KOH/g (midpoint)
SAP for NaOH0.1358 g/g
Iodine value104–120 g I₂/100 g
INS (SAP − IV)79
Melting point—
Unsaponifiable matter≤ 2 %

Soapmaking books print about 0.135 g NaOH per g (median of 6 books), which agrees with ours to within 2 %.

A bar made of 100 % Sesameseed Oil

Hardness 16 below 29–54
Cleansing 0 below 12–22
Conditioning 83 above 44–69
Bubbly lather 0 below 14–46
Creamy lather 16 16–48

Conventional qualities summed from the fatty-acid groups; a single-oil bar is a reference point, not a recipe.

How much lye

OilNaOHKOH
500 g 64.5 g(63.0–66.0) 90.5 g(88.4–92.6)
1 kg 129.0 g(126.0–132.1) 181.0 g(176.7–185.3)
1 lb (454 g) 58.5 g(57.1–59.9) 82.1 g(80.2–84.0)
2 lb (907 g) 117.0 g(114.3–119.8) 164.2 g(160.3–168.1)

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 17 : 83

Fatty acidPublished range, %Used
Myristic acid C14:0 · saturated 0–0.1 0.1
Palmitic acid C16:0 · saturated 7.9–12 10.0
Palmitoleic acid C16:1 0–0.2 0.1
Stearic acid C18:0 · saturated 4.5–6.7 5.6
Oleic acid C18:1 34.4–45.5 40.0
Linoleic acid C18:2 36.9–47.9 42.4
α-Linolenic acid C18:3 n-3 0.2–1 0.6
Arachidic acid C20:0 · saturated 0.3–0.7 0.5
Gadoleic acid C20:1 0–0.3 0.2
Behenic acid C22:0 · saturated 0–1.1 0.6
Lignoceric acid C24:0 · saturated 0–0.3 0.2

Compare it with other oils

Where these numbers come from

Codex Alimentarius Commission (FAO/WHO) — CXS 210-1999 Standard for Named Vegetable Oils, print of the 2019 revision (adopted 1999; revised 2001, 2003, 2009, 2017, 2019; amended 2005, 2011, 2013, 2015, 2019) · document dated 2019 · read 2026-09-20

Verbatim mirror of the FAO file CXS_210e.pdf; the official FAO link was Cloudflare-gated at retrieval. Table 1 (Section 3.1) = mandatory GLC fatty-acid ranges, % of total fatty acids, ND = not detectable (<=0.05%). Table 2 (Appendix 'Other quality and composition factors') gives saponification value, iodine value (Wijs) and unsaponifiable matter of CRUDE oils; the Appendix is explicitly ADVISORY (a product not meeting it may still conform). This print predates the 2021-2025 amendments; the 2024 additions (avocado, camellia seed, sacha inchi, high-oleic soya bean) are not included.

Ministry of Health, Labour and Welfare, Japan (Japanese Pharmacopoeia, 18th Edition, English version) — JP XVIII, Crude Drugs and Related Drugs (official monographs) · document dated 2021-06-07 · read 2026-09-20

JP XVIII 'Sesame Oil': acid value NMT 0.2; saponification value 187-194; unsaponifiable matters NMT 2.0 %; iodine value 103-118.

Fatty acids from CXS 210 Table 1 (mandatory GLC ranges, % of total fatty acids; 'ND' = not detectable, <=0.05%, entries that are ND-only are omitted; C17:0, C17:1, C20:2, C22:2 and C24:1 columns omitted because they are outside the acids this database records). The saponification value, the iodine value and the unsaponifiable share from Appendix Table 2 (crude oils; ADVISORY, not mandatory; unsaponifiable converted from g/kg). No 'typical' values are printed in the standard, so none are given. C22:0 printed 'NN-1.1' (typo for ND-1.1). Appendix: Baudouin test positive. JP XVIII 'Sesame Oil': SAP 187-194, IV 103-118, unsaponifiable NMT 2.0 %, specific gravity 0.914-0.921.

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.