Journal of the American Oil Chemists' Society

, Volume 74, Issue 4, pp 409–412

Castor oil dehydration kinetics

  • F. Seniha Guner

DOI: 10.1007/s11746-997-0098-9

Cite this article as:
Guner, F.S. J Amer Oil Chem Soc (1997) 74: 409. doi:10.1007/s11746-997-0098-9


The dehydration reaction kinetics of castor oil was investigated with sodium bisulfate-sodium bisulfite mixture (SB-SB) or p-toluenesulfonic acid as catalyst. Reactions were carried out at 210, 220, and 230°C, and a kinetic model was determined for each case. The reactions with SB-SB catalyst at 210 and 220°C and with p-toluenesulfonic acid at 210°C followed second-order kinetics. A first-order rate equation showed the best fit to the experimental data for the reaction with SB-SB at 230°C. p-Toluenesulfonic acid-catalyzed reactions at 220 and 230°C were also first-order reactions. Additionally, some mathematical equations were derived between iodine value, refractive index, viscosity, and reaction time.

Key words

Castor oil dehydrated castor oil kinetics 

Copyright information

© AOCS Press 1997

Authors and Affiliations

  • F. Seniha Guner
    • 1
  1. 1.Chemical Engineering DepartmentIstanbul Technical UniversityMaslak - IstanbulTurkey

Personalised recommendations