Assertion: hypophosphorous acid's use | /r/CapableOf | make after evaporation
Facets:
Source sentences:
text: It has been observed, particularly surprisingly, that the use of hypophosphorous acid during this esterification step made it possible to obtain, directly after evaporation, diester compositions having an identical, or even lower, color than that of the reaction crudes not subjected to evaporation.
text: It has been observed that the use of hypophosphorous acid during the esterification step according to the invention made it possible to obtain, after evaporation then simple treatment with activated carbon under the conditions indicated above, a composition of dianhydrohexitol diester(s) having a yellow index YI at most equal to 25, or even at most equal to 20.
text: It has been observed, particularly surprisingly, that the use of hypophosphorous acid during this esterification step made it possible to obtain, directly after evaporation, diester compositions having an identical, or even lower, color than that of the reaction crudes not subjected to evaporation.
text: It has been observed that the use of hypophosphorous acid during the esterification step according to the invention made it possible to obtain, after evaporation then simple treatment with activated carbon under the conditions indicated above, a composition of dianhydrohexitol diester(s) having a yellow index YI at most equal to 25, or even at most equal to 20.