Oil A
Neem OilAzadirachta indica
NaOH 0.1387
Load 500 gHead-to-head
Neem Oil vs Beef Tallow
soft
hard
Oil B
Beef TallowAdeps bovis
NaOH 0.1410
Load 500 gSubstitution factor
NaOH SAP A 0.1387NaOH SAP B 0.1410A / B = 0.1387 / 0.1410
0.9837
Multiply your lye amount by 0.9837 when swapping Neem Oil for Beef Tallow.
Inverse 1.0166 when swapping Beef Tallow for Neem Oil.
500 g swap · pure NaOH
- 500 g Neem Oil
- 69.35 g NaOH
- 500 g Beef Tallow
- 70.50 g NaOH
- Lye_A = Lye_B × factor
- 70.50 × 0.9837 = 69.35
Constants
SAP, iodine, INS
| Metric | Neem Oil | Beef Tallow | Δ A−B |
|---|---|---|---|
| NaOH SAP (pure) | 0.1387 | 0.1410 | -0.0023 |
| KOH SAP (pure) | 0.1945 | 0.1980 | -0.0035 |
| KOH SAP (90%) | 0.2161 | 0.2200 | -0.0039 |
| Iodine value | 72 | 45 | +27 |
| INS | 123 | 147 | -24 |
| Max % of oils | 10% | 50% | -40 |
| Hardness class | soft | hard | — |
| Trace | accelerates | neutral | — |
| INCI (pre-sap) | Azadirachta Indica (Neem) Seed Oil | Adeps Bovis (Tallow) | — |
| INCI NaOH salt | Sodium Neemate | Sodium Tallowate | — |
| INCI KOH salt | Potassium Neemate | Potassium Tallowate | — |
Fatty acids
Eight-acid profile
| Metric | Neem Oil | Beef Tallow | Δ A−B |
|---|---|---|---|
| Lauric C12:0 | 0.0% | 0.0% | 0.0 |
| Myristic C14:0 | 0.0% | 3.0% | -3.0 |
| Palmitic C16:0 | 18.0% | 28.0% | -10.0 |
| Stearic C18:0 | 18.0% | 22.0% | -4.0 |
| Ricinoleic C18:1-OH | 0.0% | 0.0% | 0.0 |
| Oleic C18:1 | 52.0% | 42.0% | +10.0 |
| Linoleic C18:2 | 9.0% | 3.0% | +6.0 |
| Linolenic C18:3 | 0.0% | 0.0% | 0.0 |
Quality
Physical contribution
| Metric | Neem Oil | Beef Tallow | Δ A−B |
|---|---|---|---|
| Hardness | 36.0 | 53.0 | -17.0 |
| Cleansing | 0.0 | 3.0 | -3.0 |
| Conditioning | 61.0 | 45.0 | +16.0 |
| Bubbly lather | 0.0 | 3.0 | -3.0 |
| Creamy lather | 36.0 | 50.0 | -14.0 |
| Longevity | 36.0 | 50.0 | -14.0 |