| System | H2O-CO2 |
| Type | Primary |
| Shape | Irregular to rounded |
| Class | Liquid + Vapor (L + V) |
| Fill | 0.66 to 0.97 |
| Temperature of melting of CO2 (Tm CO2) | −56.6˚C to −59.2˚C |
| Temperature of Ice melting (Tm Ice) | −1.2˚C to −8.2˚C |
| Th total | 125˚C to 256˚C |
| Phase | Liquid (L) |
| Wt% of NaCl equiv | 1.97 to 11.93 |
| Density in gm/cc | 0.86 to 0.99 |