| Thermo-physical Properties | Climsel C58 | RT 50 |
| Melting temperature range (˚C) | 55 - 60 | 45 - 51 |
| Solidification temperature range (˚C) | 56 - 53 | 51 - 46 |
| Latent Heat of Fusion (J/Kg) | 212,000 | 160,000 |
| Liquid density (Kg/m3) | 1280 | 760 |
| Solid Density (Kg/m3) | 1460 | 880 |
| Average Specific Heat (KJ/Kg∙K) | 3.6 | 2 |
| Conductivity in Solid (W/m∙K) | 0.57 | 0.2 |
| Conductivity in Liquid (W/m∙K) | 0.47 | 0.2 |