Cold-process bench

Saponis

Head-to-head

Coconut Oil (76 deg) vs Castor Oil

hard
soft

Substitution factor

NaOH SAP A 0.1830NaOH SAP B 0.1280A / B = 0.1830 / 0.1280

1.4297

Multiply your lye amount by 1.4297 when swapping Coconut Oil (76 deg) for Castor Oil.

Inverse 0.6995 when swapping Castor Oil for Coconut Oil (76 deg).

500 g swap · pure NaOH

500 g Coconut Oil (76 deg)
91.50 g NaOH
500 g Castor Oil
64.00 g NaOH
Lye_A = Lye_B × factor
64.00 × 1.4297 = 91.50
Reverse pair

Constants

SAP, iodine, INS

MetricCoconut Oil (76 deg)Castor OilΔ A−B
NaOH SAP (pure)

0.1830

0.1280

+0.0550
KOH SAP (pure)

0.2570

0.1800

+0.0770
KOH SAP (90%)

0.2856

0.2000

+0.0856
Iodine value

10

86

-76
INS

258

95

+163
Max % of oils

30%

10%

+20
Hardness class

hard

soft

—
Trace

accelerates

accelerates

—
INCI (pre-sap)

Cocos Nucifera (Coconut) Oil

Ricinus Communis (Castor) Seed Oil

—
INCI NaOH salt

Sodium Cocoate

Sodium Ricinoleate

—
INCI KOH salt

Potassium Cocoate

Potassium Ricinoleate

—

Fatty acids

Eight-acid profile

MetricCoconut Oil (76 deg)Castor OilΔ A−B
Lauric C12:0

48.0%

0.0%

+48.0
Myristic C14:0

19.0%

0.0%

+19.0
Palmitic C16:0

9.0%

1.0%

+8.0
Stearic C18:0

3.0%

1.0%

+2.0
Ricinoleic C18:1-OH

0.0%

90.0%

-90.0
Oleic C18:1

8.0%

4.0%

+4.0
Linoleic C18:2

2.0%

4.0%

-2.0
Linolenic C18:3

0.0%

0.0%

0.0

Quality

Physical contribution

MetricCoconut Oil (76 deg)Castor OilΔ A−B
Hardness

79.0

2.0

+77.0
Cleansing

67.0

0.0

+67.0
Conditioning

10.0

98.0

-88.0
Bubbly lather

67.0

90.0

-23.0
Creamy lather

12.0

92.0

-80.0
Longevity

12.0

2.0

+10.0