Excess volumes V-E for binary mixtures of tetralin with hexane, heptane, octane, nonane, and decane have been determined from density measurements at temperatures from 293.15 to 313.15 K. V-E is negative over the whole composition range and becomes more negative with an increase in temperature. At each temperature, V-E increases as the carbon number of the n-alkane decreases. The cubic expansion coefficients of tetralin and n-alkanes are also reported.