A simplification of gas clathrate hydrate thermochemistry using the Thermodynamic Difference Rule (TDR). Part 4. Further extension of the TDR to temperatures other than 298 K and validation of the similarity found between inorganic hydrate and clathrate

The TDR is used to determine an improved value for the heat capacity of the tetrahydrate of beryllium sulfate: Cp(BeSO4·4H2O,s)/JK-1mol-1=247.1.