The　density　and　viscosity　of　pure　liquid　2,　4-dichlorofluorobenzene　and　2,　6-dichlorofluorobenzene　were　measured　in　the　temperature　range　of　(318.15-348.15)　K　at　the　local　atmospheric　pressure　of　99.8　kPa.　The　saturated　vapor　pressures　of　pure　2,　4-dichlorofluorobenzene　and　2,　6-dichlorofluorobenzene　and　the　isobaric　vapor-liquid　equilibria　(VLE)　data　for　the　2,　4-dichlorofluorobenzene　+　2,　6-dichlorofluorobenzene　binary　system　at　atmospheric　pressure　were　determined　experimentally　by　a　modified　Rose　still.　The　density　values　were　accurately　described　by　DIPPR　equation.　The　viscosity　data　were　well　correlated　using　the　Litovitz,　Ghatee　and　VFT,　and　Andrade　equations,　and　the　VFT　equation　shows　the　best　accuracy.　Both　Antoine　and　Riedel　equations　can　well　describe　the　relationship　between　saturated　vapor　pressure　and　temperature,　which　meet　the　requirements　of　engineering　design.　The　Riedel　equation　is　more　accurate　due　to　the　lower　average　relative　deviation.　The　VLE　data　were　successfully　correlated　with　NRTL　and　Wilson　activity　coefficient　models,　and　the　interaction　parameters　were　obtained.　The　result　indicates　that　there　is　no　azeotrope　in　the　binary　mixture.　The　above　thermodynamic　properties　of　pure　component　and　the　VLE　data　presented　are　crucial　for　the　design　and　operation　of　distillation　for　the　isomeric　mixture　separation　of　2,　4-dichlorofluorobenzene　+　2,　6-dichlorofluorobenzene.　(C)　2020　Elsevier　B.V.　All　rights　reserved.