Oil A
Olive OilOlea europaea
NaOH 0.1340
Load 500 gHead-to-head
Olive Oil vs Neem Oil
soft
soft
Oil B
Neem OilAzadirachta indica
NaOH 0.1387
Load 500 gSubstitution factor
NaOH SAP A 0.1340NaOH SAP B 0.1387A / B = 0.1340 / 0.1387
0.9661
Multiply your lye amount by 0.9661 when swapping Olive Oil for Neem Oil.
Inverse 1.0351 when swapping Neem Oil for Olive Oil.
500 g swap · pure NaOH
- 500 g Olive Oil
- 67.00 g NaOH
- 500 g Neem Oil
- 69.35 g NaOH
- Lye_A = Lye_B × factor
- 69.35 × 0.9661 = 67.00
Constants
SAP, iodine, INS
| Metric | Olive Oil | Neem Oil | Δ A−B |
|---|---|---|---|
| NaOH SAP (pure) | 0.1340 | 0.1387 | -0.0047 |
| KOH SAP (pure) | 0.1880 | 0.1945 | -0.0065 |
| KOH SAP (90%) | 0.2089 | 0.2161 | -0.0072 |
| Iodine value | 85 | 72 | +13 |
| INS | 109 | 123 | -14 |
| Max % of oils | 100% | 10% | +90 |
| Hardness class | soft | soft | — |
| Trace | slows | accelerates | — |
| INCI (pre-sap) | Olea Europaea (Olive) Fruit Oil | Azadirachta Indica (Neem) Seed Oil | — |
| INCI NaOH salt | Sodium Olivate | Sodium Neemate | — |
| INCI KOH salt | Potassium Olivate | Potassium Neemate | — |
Fatty acids
Eight-acid profile
| Metric | Olive Oil | Neem Oil | Δ A−B |
|---|---|---|---|
| Lauric C12:0 | 0.0% | 0.0% | 0.0 |
| Myristic C14:0 | 0.0% | 0.0% | 0.0 |
| Palmitic C16:0 | 14.0% | 18.0% | -4.0 |
| Stearic C18:0 | 3.0% | 18.0% | -15.0 |
| Ricinoleic C18:1-OH | 0.0% | 0.0% | 0.0 |
| Oleic C18:1 | 71.0% | 52.0% | +19.0 |
| Linoleic C18:2 | 11.0% | 9.0% | +2.0 |
| Linolenic C18:3 | 1.0% | 0.0% | +1.0 |
Quality
Physical contribution
| Metric | Olive Oil | Neem Oil | Δ A−B |
|---|---|---|---|
| Hardness | 17.0 | 36.0 | -19.0 |
| Cleansing | 0.0 | 0.0 | 0.0 |
| Conditioning | 83.0 | 61.0 | +22.0 |
| Bubbly lather | 0.0 | 0.0 | 0.0 |
| Creamy lather | 17.0 | 36.0 | -19.0 |
| Longevity | 17.0 | 36.0 | -19.0 |