Cold-process bench

Saponis

Head-to-head

Palm Kernel Oil vs Castor Oil

hard
soft

Substitution factor

NaOH SAP A 0.1770NaOH SAP B 0.1280A / B = 0.1770 / 0.1280

1.3828

Multiply your lye amount by 1.3828 when swapping Palm Kernel Oil for Castor Oil.

Inverse 0.7232 when swapping Castor Oil for Palm Kernel Oil.

500 g swap · pure NaOH

500 g Palm Kernel Oil
88.50 g NaOH
500 g Castor Oil
64.00 g NaOH
Lye_A = Lye_B × factor
64.00 × 1.3828 = 88.50
Reverse pair

Constants

SAP, iodine, INS

MetricPalm Kernel OilCastor OilΔ A−B
NaOH SAP (pure)

0.1770

0.1280

+0.0490
KOH SAP (pure)

0.2470

0.1800

+0.0670
KOH SAP (90%)

0.2744

0.2000

+0.0744
Iodine value

18

86

-68
INS

227

95

+132
Max % of oils

30%

10%

+20
Hardness class

hard

soft

—
Trace

accelerates

accelerates

—
INCI (pre-sap)

Elaeis Guineensis (Palm) Kernel Oil

Ricinus Communis (Castor) Seed Oil

—
INCI NaOH salt

Sodium Palm Kernelate

Sodium Ricinoleate

—
INCI KOH salt

Potassium Palm Kernelate

Potassium Ricinoleate

—

Fatty acids

Eight-acid profile

MetricPalm Kernel OilCastor OilΔ A−B
Lauric C12:0

49.0%

0.0%

+49.0
Myristic C14:0

16.0%

0.0%

+16.0
Palmitic C16:0

8.0%

1.0%

+7.0
Stearic C18:0

2.0%

1.0%

+1.0
Ricinoleic C18:1-OH

0.0%

90.0%

-90.0
Oleic C18:1

15.0%

4.0%

+11.0
Linoleic C18:2

2.0%

4.0%

-2.0
Linolenic C18:3

0.0%

0.0%

0.0

Quality

Physical contribution

MetricPalm Kernel OilCastor OilΔ A−B
Hardness

75.0

2.0

+73.0
Cleansing

65.0

0.0

+65.0
Conditioning

17.0

98.0

-81.0
Bubbly lather

65.0

90.0

-25.0
Creamy lather

10.0

92.0

-82.0
Longevity

10.0

2.0

+8.0