Potassium Hydroxide → Potassium Oleate

HRID 1578472Notes

Reaction equation

[OH-].[K+:2].[C:3]([O-:22])(=[O:21])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10]/[CH:11]=[CH:12]\[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20]>>[C:3]([O-:22])(=[O:21])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10]/[CH:11]=[CH:12]\[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20].[K+:2]

Participants

Reactant 2

HCID 14797Potassium Hydroxide2×

HCID 5460221Oleic acid, ion(1-)

Product 1

HCID 23665571Potassium Oleate

Procedure

Separately, 60 grams of oleic acid were mixed with 30 grams of calcium stearate and melted at about 230° F. until a clear liquid was obtained (the oleate lowers the effective melting point). After melting, an additional 240 ml of the 5% KOH solution were added slowly so that the temperature of the mixture was about 200° F. The KOH reacted with the oleic acid to form the acid salt, potassium oleate (KOl). The amount of KOH added at this stage was not sufficient to achieve full neutralization of the acid, which would have made too stiff a soap.

Workup

customwas about 200° F

Sources & evidence

ORD record: ord-1b9b099f28164bbe81988072fb4374cc
Source dataset: uspto-grants-1976_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US03937676

Reaction notes

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