Sal Butter
Saponification values, fatty acid makeup, and what this oil does in a bar of soap.
Saponification values
Grams of lye needed to saponify one gram of sal butter. Multiply by your oil weight, then apply your superfat.
- NaOH (bar soap)
- 0.132
- KOH (liquid soap)
- 0.185
- Iodine
- 39
- INS
- 146
INCI: Shorea Robusta Seed Butter
Fatty acid profile
These figures account for 92% of sal butter. The remainder is made up of fatty acids this model does not track, so treat the derived qualities below as indicative rather than complete.
| Fatty acid | Percentage |
|---|---|
| Stearic | 44% |
| Oleic | 40% |
| Palmitic | 6% |
| Linoleic | 2% |
Soap qualities at 100%
What a bar made entirely of sal butter would score. Almost nobody soaps a single oil at 100% — this is here so you can see what the oil contributes to a blend. The shaded band is the range most makers aim for in a finished recipe.
Oils that behave similarly
Closest matches by fatty acid makeup — the usual starting point when you have run out of sal butter and need a substitute. Check the lye maths again after swapping: SAP values differ even between oils that behave alike.
- Mango Seed ButterSAP 0.136 NaOH
- Kpangnan ButterSAP 0.136 NaOH
- Cupuacu ButterSAP 0.137 NaOH
- Shea ButterSAP 0.128 NaOH
- Kokum ButterSAP 0.135 NaOH