1. Ion association in calcium phosphate solutions at 37°C

   • Jingwu Zhang
   • A. Ebrahimpour
   • G. H. Nancollas

   OriginalPaper Pages: 455 - 465

2. The pK ₂ ^* for the dissociation of H₂SO₃ in NaCl solutions with added Ni²⁺, Co²⁺, Mn²⁺, and Cd²⁺ at 25°C

   • Rabindra N. Roy
   • Jia-Zhong Zhang
   • Frank J. Millero

   OriginalPaper Pages: 467 - 478

3. Mean activity coefficients at 25°C for NaBr−Ca(NO₃)₂−H₂O mixtures, a ternary system without a common ion

   • A. Haghtalab
   • J. H. Vera

   OriginalPaper Pages: 479 - 493

4. Salt effects on the protonation of ortho-phosphate between 10 and 50°C in aqueous solution. A complex formation model

   • Pier G. Daniele
   • Alessandro De Robertis
   • Silvio Sammartano

   OriginalPaper Pages: 495 - 515

5. Enthalpies of solvation of alkylated uracils in water, nonaqueous and mixed solvents

   • Michaŀ Żóŀkiewski
   • Wojciech Zielenkiewicz

   OriginalPaper Pages: 517 - 530

6. Thermodynamics of molecular interactions in ethyl iodide+toluene mixtures

   • K. C. Singh
   • K. C. Kalra
   • P. Kumar

   OriginalPaper Pages: 531 - 538

7. Association studies of tetramethylguanidinium perchlorate and tetramethylguanidinium chloride in ethanol solutions at 25°C

   • O. D. Bonner
   • Š. Paljk
   • C. Klofutar

   OriginalPaper Pages: 539 - 550