Coconut oil, 92°F (hydrogenated): SAP value and fatty acids
Coconut oil, 92°F (hydrogenated) has a saponification value of 257.7 mg KOH/g. One gram needs 0.184 g of sodium hydroxide (NaOH) for bar soap or 0.258 g of potassium hydroxide (KOH) for liquid soap to turn fully into soap, before any superfat.
Key numbers
- SAP, NaOH
- 0.18371 g per g oil
- SAP, KOH
- 0.2577 g per g oil
- Saponification value
- 257.7 mg KOH/g
- INCI name
- Hydrogenated Coconut Oil
Example: 100 g of Coconut oil, 92°F (hydrogenated) with no superfat needs 18.4 g of 100% NaOH, or 25.8 g of 100% KOH. A 5% superfat uses 5% less.
In soap
Its main fatty acids in our cited profile are lauric (47.1%) and myristic (17.5%). The eight fatty acids used in soap-quality scores make up 85.1% of the profile.
On its own it scores 85 for hardness, 65 for cleansing and 0 for conditioning, with a saturated : unsaturated split of 85 : 0.
Hydrogenation barely changes a SAP value. Certified Lye gives 92° the same figure as its 76° coconut, and Codex lists coconut at 248–265. Parchem is lower. Use your COA. Published sources for this oil differ by more than 3%, so checking your supplier's certificate of analysis matters more than usual.
Fatty-acid profile
| Fatty acid | % of fatty acids | Counts toward |
|---|---|---|
| lauric | 47.1% | hardness, cleansing, bubbly lather |
| myristic | 17.5% | hardness, cleansing, bubbly lather |
| palmitic | 9.1% | hardness, creamy lather |
| stearic | 11.1% | hardness, creamy lather |
| ricinoleic | 0% | conditioning, bubbly and creamy lather |
| oleic | 0.3% | conditioning |
| linoleic | 0% | conditioning |
| linolenic | 0% | conditioning |
Basis: USDA FDC SR Legacy 172367 (industrial hydrogenated coconut oil), converted to % of total fatty acids.
Soap-quality scores (this oil alone)
| Hardness | 85 |
|---|---|
| Cleansing | 65 |
| Conditioning | 0 |
| Bubbly lather | 65 |
| Creamy lather | 20 |
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: 257.7 mg KOH/g (Median of sources), from Glycerol Tricocoate (synonym: Coconut oil, hydrogenated), typical product specifications, Parchem (chemical distributor). Printed value: 240 - 255 mg KOH/g.
Published values we checked:
- 240 - 255 mg KOH/g — Parchem (chemical distributor)
- NaOH 0.1910 / KOH 0.2690 g alkali per g oil — Certified Lye
Fatty acids: USDA FoodData Central, SR Legacy: Oil, industrial, coconut (hydrogenated), used for whipped toppings and coffee whiteners (FDC ID 172367), U.S. Department of Agriculture, Agricultural Research Service. Also checked: Ministry of Health, Labour and Welfare (Japan) (PDF p. 1596).
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.
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