Ethylene Glycol → Ethylene glycol dipalmitate

Participants

Reaction Conditions

Reaction Steps

90 g ethylene glycol (Fluka), 571 g palmitic acid (Edenol C16 98-100, Cognis-Oleochemicals) and 0.3 g tin (II) oxalate Goldschmidt) were heated under nitrogen. The esterization reaction starts at approx. 170° C. with the formation of water. After 3 hrs the reaction water is drawn off again by applying a vacuum and the vacuum within 4 hrs reduced to approx. 15 mbar. The final temperature was 230° C. at an acid value <6 the reaction was ended. It was cooled to 90° C. and filtered. Yield 568 g, acid value=3.9, dew point 70.5° C.

Provenance & Evidence