Oil A
Castor OilRicinus communis
NaOH 0.1280
Load 500 gHead-to-head
Castor Oil vs Rice Bran Oil
soft
soft
Oil B
Rice Bran OilOryza sativa
NaOH 0.1340
Load 500 gSubstitution factor
NaOH SAP A 0.1280NaOH SAP B 0.1340A / B = 0.1280 / 0.1340
0.9552
Multiply your lye amount by 0.9552 when swapping Castor Oil for Rice Bran Oil.
Inverse 1.0469 when swapping Rice Bran Oil for Castor Oil.
500 g swap · pure NaOH
- 500 g Castor Oil
- 64.00 g NaOH
- 500 g Rice Bran Oil
- 67.00 g NaOH
- Lye_A = Lye_B × factor
- 67.00 × 0.9552 = 64.00
Constants
SAP, iodine, INS
| Metric | Castor Oil | Rice Bran Oil | Δ A−B |
|---|---|---|---|
| NaOH SAP (pure) | 0.1280 | 0.1340 | -0.0060 |
| KOH SAP (pure) | 0.1800 | 0.1870 | -0.0070 |
| KOH SAP (90%) | 0.2000 | 0.2078 | -0.0078 |
| Iodine value | 86 | 100 | -14 |
| INS | 95 | 87 | +8 |
| Max % of oils | 10% | 20% | -10 |
| Hardness class | soft | soft | — |
| Trace | accelerates | slows | — |
| INCI (pre-sap) | Ricinus Communis (Castor) Seed Oil | Oryza Sativa (Rice) Bran Oil | — |
| INCI NaOH salt | Sodium Ricinoleate | Sodium Rice Branate | — |
| INCI KOH salt | Potassium Ricinoleate | Potassium Rice Branate | — |
Fatty acids
Eight-acid profile
| Metric | Castor Oil | Rice Bran Oil | Δ A−B |
|---|---|---|---|
| Lauric C12:0 | 0.0% | 0.0% | 0.0 |
| Myristic C14:0 | 0.0% | 1.0% | -1.0 |
| Palmitic C16:0 | 1.0% | 21.0% | -20.0 |
| Stearic C18:0 | 1.0% | 2.0% | -1.0 |
| Ricinoleic C18:1-OH | 90.0% | 0.0% | +90.0 |
| Oleic C18:1 | 4.0% | 42.0% | -38.0 |
| Linoleic C18:2 | 4.0% | 31.0% | -27.0 |
| Linolenic C18:3 | 0.0% | 1.0% | -1.0 |
Quality
Physical contribution
| Metric | Castor Oil | Rice Bran Oil | Δ A−B |
|---|---|---|---|
| Hardness | 2.0 | 24.0 | -22.0 |
| Cleansing | 0.0 | 1.0 | -1.0 |
| Conditioning | 98.0 | 74.0 | +24.0 |
| Bubbly lather | 90.0 | 1.0 | +89.0 |
| Creamy lather | 92.0 | 23.0 | +69.0 |
| Longevity | 2.0 | 23.0 | -21.0 |