1. Properties: colorless, odorless gas.

2. Density (g/mL, 25℃) : 1.607

3. Relative vapor density (g/mL, air =1) : 4.7

4. Melting point (C) : -100.6

5. Boiling point (C, atmospheric pressure) : -78.2

6. Critical temperature (K) : 19.85

7. Critical pressure (MPa) : 3.043

8. Critical density (G · Cm-3) : 0.622

9. Critical volume (Cm3 ·mol-1) : 221

10. Critical compression factor: 0.276

11. Eccentricity factor: 0.245

12. Saturated vapor pressure (kPa, 20 C) : 182

13. Van der Waals area (Cm2 ·mol-1) : 6.900×109

14. Critical temperature (C) : 145.7

15. Critical pressure (MPa) : 3.29

16. Lennard-jones parameter (A) : 5.5571

17. Lennard-jones parameter (K) : 161.14

18. Van der Waals volume (Cm3 ·mol-1) : 42.660

19. Solubility: slightly soluble in water

20. The gas phase standard states heat (enthalpy) (kJ·mol-1) : -1343

21. Gas phase standard entropy (J·mol-1·K-1) : 332.5

22. Phase standard free energy generation (kJ·mol-1) : -1257.0

23. Gas phase standard hot melt (J·mol-1·K-1) : 106.54

C2F6