SEARCH Articles Figures Tables 1-benzenesulfonyl Azeotrope distillation Azeotropes with Azeotropic distillation Azeotropic distillation azeotropes Benzenesulfonyl chloride Chloride distillation Distillation azeotropes Distillation by Esterification with Esterification, by azeotropic distillation Pentaerythritol