Hemp Seed Oil
INCI Cannabis Sativa Seed Oil. Saponified with NaOH it is listed as Sodium Hempseedate, with KOH as Potassium Hempseedate. Also: Cannabis sativa seed oil, Hempseed oil.
Calculate a 100 % Hemp Seed Oil bar
That is stoichiometry on a measured composition rather than a guess, and it is about as well determined as a published figure: checked against the 35 Codex oils where both fields come from the same standard, the method's median error is 0.90 % and its 90th percentile 2.74 %, with no meaningful bias. The formula page shows the working. If you have a certificate of analysis for your lot, enter its measured value in the calculator and this estimate is set aside.
Published values
| Saponification value | not published |
| Derived from composition | 191.9 ± 3 % mg KOH/g |
| Used by the calculator | 191.9 mg KOH/g (derived) |
| SAP for NaOH | 0.1368 g/g |
| Iodine value | 145–170 g I₂/100 g |
| INS (SAP − IV) | 34 |
| Melting point | — |
| Unsaponifiable matter | — |
A bar made of 100 % Hemp Seed Oil
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 | 4.5–12.5 | 8.5 |
| Palmitoleic acid | C16:1 | ≤ 1 | 1.0 |
| Stearic acid | C18:0 · saturated | 0.5–4.5 | 2.5 |
| Oleic acid | C18:1 | 5.5–20.5 | 13.0 |
| Linoleic acid | C18:2 | 44.5–65.5 | 55.0 |
| α-Linolenic acid | C18:3 n-3 | 13.5–30.5 | 22.0 |
| Arachidic acid | C20:0 · saturated | ≤ 2 | 2.0 |
| Gadoleic acid | C20:1 | ≤ 1 | 1.0 |
| Behenic acid | C22:0 · saturated | ≤ 1 | 1.0 |
Where these numbers come from
Values are the producer's release specification for cold-pressed hemp seed oil (Gustav Heess GmbH): iodine value 145.0-170.0 g I2/100 g (Ph. Eur. 2.5.4); acid value max 4.0; THC max 7.5 ppm; palmitic 4.5-12.5, palmitoleic max 1.0, stearic 0.5-4.5, oleic 5.5-20.5, linoleic 44.5-65.5, gamma-linolenic min 0.5, alpha-linolenic 13.5-30.5, arachidic max 2.0, eicosenoic max 1.0, behenic max 1.0 %. 'linolenic' here = alpha-linolenic (18:3 n-3); gamma-linolenic (min 0.5 %) has no key in this schema. sapKohMgPerG is NULL: no saponification value printed on the sheet (refined-grade sheet Sp305030g likewise has none).
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.