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ON THE BEHAVIOUR OF THE CA-SO4-H2O SYSTEM

2023; Volume: 32; Issue: 125 Linguagem: Inglês

10.18257/raccefyn.32(125).2008.2340

2382-4980

Iván Berdugo, Enrique Romero, Maarten W. Saaltink, María Albis,

Calcium Carbonate Crystallization and Inhibition

Thermotropia, barotropia and hygrotropia of the Ca-SO4-H2O system is reviewed and discussed and a three-dimensional representation of the phase diagram for system at atmospheric pressure is derived. It is concluded that the behaviour of the system is a coupled thermo-hydro-chemical phenomenon in which water activity is the key factor for existence of high concentration of Ca2+ and SO2-4 and confinement pressure plays a secondary role.