The Buckingham potential has been employed to simulate the melting and thermodynamic parameters of sodium rameters have been obtained in a wide range of temperatures. The calculated thermodynamic parameters are found to be in good agreement with the available experimental data. The NaC1 melting simulations appear to validate the interpretation of superheating of the solid in the one-phase MD simulations. The melting curve of NaC1 is compared with the experiments and other calculations at pressure 0-30GPa range.