The　solvent　usually　forms　a　large　part　of　the　heterogeneous　hydration　mixture　in　the　biphasic　hydration　of　liquid　olefins,　and　solvent　selection　greatly　affects　the　hydration　conversion.　In　this　work,　the　hydration　of　dihydromyrcene　(DHM)　in　two　different　solvents,　i.e.,　acetone　and　1,4-dioxane,　was　investigated　experimentally　and　mathematically.　A　theoretical　model　coupling　liquid　liquid　phase　equilibrium　and　reaction　equilibrium　is　proposed　for　evaluating　the　effects　of　the　solvent　on　the　heterogeneous　hydration　of　DHM.　Experiments　were　performed　to　obtain　unreported　parameters　for　the　phase　equilibrium　and　reaction　equilibrium　and　the　conversion　of　DHM　in　biphasic　hydration　was　then　predicted　by　the　coupled　model.　The　effects　of　the　mass　feed　ratios　on　the　total　conversion　X　of　DHM　are　discussed　and　varying　conversions　were　observed　when　different　solvents　were　employed.　DHM　was　more　soluble　in　the　acetone　system　than　in　1,4-dioxane,　and　the　conversion　of　the　hydration　reaction　was　higher.　This　predictive　evaluation　process　based　on　the　overall　equilibrium　could　provide　a　practical　strategy　for　selecting　the　optimal　solvent　for　the　heterogeneous　hydration　of　DHM　and　other　liquid　olefins.　(C)　2016　Elsevier　B.V.　All　rights　reserved.