Adipic Acid → HCID 131718041, compound

Participants

Reaction Steps

74.5 g (0.8 mole) glycerol and 243.0 g (0.9 mole) technical stearic acid were reacted for 2 hours at 195° to 200° C. in the presence of 0.3 g tin powder. In the course of the first hour, the pressure was slowly and continuously reduced to around 70 mbar and thereafter was left at that level. After the addition of 102.2 g (0.7 mole) adipic acid and 0.3 g tin powder, the reaction mixture was kept at 195°-200° C. for 3 hours under decreasing pressure (final value 17 mbar). 31.2 (0.1 mole) technical hydroxystearic acid and another 0.3 g tin powder were then added before the reaction mixture was heated for another 3 hours to 195°-200° C. The pressure was reduced to 13-16 mbar during the first 30 minutes and thereafter was kept at that level. After the addition of bleaching earth, filtration under pressure at 90° to 100° C. and cooling, the glycerol adipate stearate hydroxystearate (8:7:9:1) (material J; 384 g) was present as a yellow brown-tinged wax-like mass (dropping point 48.0° C.; acid number 7.9; saponification number 327.3; hydroxyl number 20.1).

Provenance & Evidence