Synthesis, properties and phase equilibrium of ZnSO4-Thr-H2O system (25 degrees C)

The solubility of ZnSO4 - Thr - H2O system at 25 degreesC in the entire con centration range has been investigated by phase equilibrium method. The cor responding phase diagram and refractive index diagram have been constructed . The results indicate that system is a simple one, which does not have any new compounds. The compound of Zn(Thr)SO4.H2O, which is not reported in th e literature, has been prepared in acetone water mixture solvent. The compo und is characterized by IR spectra, XRD, XPS and TG - DTG, as well as chemi cal and elemental analyses. The constant volume combustion energy of the co mplex, Delta E-c,E-coor, has been determined by a precision rotating bomb c alorimeter at 298.15K. The standard enthalpy of combustion, Delta H-c,coor( theta), and standard enthalpy of formation, DeltaH(f,coor)H(theta), are cal culated for the complex.