Head-to-head

Lard vs Palm Oil (RSPO)

hard
hard

Substitution factor

NaOH SAP A 0.1390NaOH SAP B 0.1420A / B = 0.1390 / 0.1420

0.9789

Multiply your lye amount by 0.9789 when swapping Lard for Palm Oil (RSPO).

Inverse 1.0216 when swapping Palm Oil (RSPO) for Lard.

500 g swap · pure NaOH

500 g Lard
69.50 g NaOH
500 g Palm Oil (RSPO)
71.00 g NaOH
Lye_A = Lye_B × factor
71.00 × 0.9789 = 69.50
Reverse pair

Constants

SAP, iodine, INS

MetricLardPalm Oil (RSPO)Δ A−B
NaOH SAP (pure)

0.1390

0.1420

-0.0030
KOH SAP (pure)

0.1950

0.1990

-0.0040
KOH SAP (90%)

0.2167

0.2211

-0.0044
Iodine value

57

53

+4
INS

139

145

-6
Max % of oils

50%

50%

0
Hardness class

hard

hard

—
Trace

slows

neutral

—
INCI (pre-sap)

Adeps Suillus (Lard)

Elaeis Guineensis (Palm) Oil

—
INCI NaOH salt

Sodium Lardate

Sodium Palmate

—
INCI KOH salt

Potassium Lardate

Potassium Palmate

—

Fatty acids

Eight-acid profile

MetricLardPalm Oil (RSPO)Δ A−B
Lauric C12:0

0.0%

0.0%

0.0
Myristic C14:0

1.0%

1.0%

0.0
Palmitic C16:0

26.0%

44.0%

-18.0
Stearic C18:0

14.0%

5.0%

+9.0
Ricinoleic C18:1-OH

0.0%

0.0%

0.0
Oleic C18:1

44.0%

39.0%

+5.0
Linoleic C18:2

10.0%

10.0%

0.0
Linolenic C18:3

1.0%

0.0%

+1.0

Quality

Physical contribution

MetricLardPalm Oil (RSPO)Δ A−B
Hardness

41.0

50.0

-9.0
Cleansing

1.0

1.0

0.0
Conditioning

55.0

49.0

+6.0
Bubbly lather

1.0

1.0

0.0
Creamy lather

40.0

49.0

-9.0
Longevity

40.0

49.0

-9.0