Canola oil, high oleic: SAP value and fatty acids

Canola oil, high oleic has a saponification value of 186.6 mg KOH/g. One gram needs 0.133 g of sodium hydroxide (NaOH) for bar soap or 0.187 g of potassium hydroxide (KOH) for liquid soap to turn fully into soap, before any superfat.

Key numbers

SAP, NaOH
0.133024 g per g oil
SAP, KOH
0.1866 g per g oil
Saponification value
186.6 mg KOH/g
INCI name
Canola Oil

Example: 100 g of Canola oil, high oleic with no superfat needs 13.3 g of 100% NaOH, or 18.7 g of 100% KOH. A 5% superfat uses 5% less.

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In soap

Its main fatty acids in our cited profile are oleic (75.3%) and linoleic (14.1%). The eight fatty acids used in soap-quality scores make up 97.8% of the profile.

On its own it scores 6 for hardness, 0 for cleansing and 92 for conditioning, with a saturated : unsaturated split of 6 : 92.

Only one source found. The 2015 Codex standard has no high-oleic rapeseed entry. Expect a SAP close to regular canola (Codex low-erucic 182–193). Only one published source was found for this value; confirm it against your supplier's certificate of analysis.

Fatty-acid profile

Fatty acid% of fatty acidsCounts toward
lauric0%hardness, cleansing, bubbly lather
myristic0%hardness, cleansing, bubbly lather
palmitic3.8%hardness, creamy lather
stearic2.1%hardness, creamy lather
ricinoleic0%conditioning, bubbly and creamy lather
oleic75.3%conditioning
linoleic14.1%conditioning
linolenic2.5%conditioning

Basis: USDA FDC SR Legacy 171042 (industrial high-oleic canola), converted to % of total fatty acids.

Soap-quality scores (this oil alone)

Hardness6
Cleansing0
Conditioning92
Bubbly lather0
Creamy lather6

Each score adds up certain fatty acids, the way Soap Ledger scores a whole recipe. They are for comparing recipes; they don't predict how a bar will feel, and they say nothing about safety or skin.

Sources

SAP value: 186.6 mg KOH/g (Single source only), from Chart of Saponification Values for Making Soap (averages compiled 2006 from distributors), Certified Lye. Printed value: NaOH 0.1330 / KOH 0.1873 g alkali per g oil.

Published values we checked:

Fatty acids: USDA FoodData Central, SR Legacy: Oil, industrial, canola, high oleic (FDC ID 171042), U.S. Department of Agriculture, Agricultural Research Service. Also checked: U.S. Department of Agriculture, Agricultural Research Service (Fatty acid nutrients (g/100 g food)).

NaOH and KOH values are converted from mg KOH/g with the molar masses 39.997 and 56.106 and rounded to 6 decimals, exactly as in the Soap Ledger app. Real oils vary by origin, grade and lot: check your supplier's certificate of analysis. Verify every weight before you make this, and follow lye safety. Not a safety or compliance certification.

Last updated .