3. SOLUTION THERMODYNAMICS
3.1 Introduction

3.2 Solution equilibria

3.2.1 Introduction
3.2.2 General rules
3.2.3 Complex formation equilibria
3.2.3.1 Mononuclear binary complexes
3.2.3.2 General binary or ternary complexes
3.2.3.3 Polynuclear complexes
3.2.3.4 Ligand acidity constants
3.2.3.5 Ligand protonation constants
3.2.3.6 Proton dissociation from complexes
3.2.4 Connected quantities (average ligand numbers etc.)
3.2.5 Solubility equilibria
3.2.6 Conditional constants
3.3 Ionic activity coefficients

3.4 pH and related terms

3.4.1 Introduction
3.4.2 Symbols
3.4.3 Definitions
3.4.4 Standard reference solutions
3.4.5 Conventional residual liquid junction potential
3.4.6 Certified reference materials (CRM) for pH
3.4.7 Measurement of pHx
3.4.8 Interpretation of pH in terms of hydrogen ion concentration
3.4.9 Determination of pH in solutions of constant ionic strength
3.4.10 Determination of pH in waters of various compositions
3.4.11 Determination of pH in blood and body fluids
3.4.12 Glossary
3.5 Practical measurement of pH in nonaqueous and mixed solvents
3.5.1 Introduction
3.5.2 Notation and terminology
3.5.3 Operational cells and equations
3.5.4 Assignment of the reference value standard pH
3.5.5 Recommended values
3.6 References