焦油中水分含量

Tar or bitumen samples contain a certain amount of moisture mixed inhomogeneously. In order to measure moisture content in such samples, it requires sonication and extraction using dehydrated THF (tetrahydrofuran) as extraction solvent for pretreatment prior to titration. In addition, by using the KF titrator in combination with the oil evaporator EV-2000L by azeotropic distillation method, a successful measurement of water in tar can be made without any interference by coexisting substances may bother KF reaction.