The present work is focusing on the synthesization and physico-chemical properties of

Jatropha curcas

biodiesel with diesel and alcohols. The densities of binary diesel (2) + 1-alkanols (C

3

or C

4

) (3) and ternary

Jatropha curcas

biodiesel (1) + diesel (2) + 1-alkanols (C

3

or C

4

) (3) blends have been reported over full range of composition at temperatures within range 288.15 to 313.15 K. Also densities of

Jatropha curcas

biodiesel (1) + diesel or 1-alkanols (C

3

or C

4

) (2) blends have been measured at 313.15 K. Excess molar volumes

V

E

V

123

E

of binary and ternary blends were calculated from the measured data and the derived properties were correlated to composition using Redlich–Kister equation. A reasonable agreement was found between the measured and estimated values. Further

densities and excess molar volumes data were reasoned to discuss molecular interactions taking into consideration effect of composition and temperature.