Constant of dissolution

Paces, T., 1983, Rate constants of dissolution derived from the measurements of mass balance in hydrological catchments. Geochimica et Cosmochimica Acta 47,1855-1863. 

The equilibrium constant of dissolution of an electrolyte (describing the equilibrium between excess solid phase and solvated ions) is often called a solubility product, denoted Ksol or Ks (or KSoi or K as appropriate). In a similar way the equilibrium constant for an acid dissociation is often written Ka, for base hydrolysis Kb, and for water dissociation Kw. 

In Chapter 4, the ionization constant (i.e., the reaction constant of dissolution) for weak acids and acid phosphates was defined. The concept of the ionization constant is very general and useful while discussing dissolution of sparsely soluble oxides in acid-base reactions. We assign the symbol K for this constant. 

Paces, T. (1983) Rate Constants of Dissolution Derived from the Measurements of Mass Balance in Hydrological Catchments, Geochim. Cosmochim. Acta 47, 1855-1863. 

TABLE 1. Comparison of Rate Constants of Dissolution and Precipitation of Simple Carbonates Determined in Various Experimental Studies(<1>... 

Paces, T. (1983), Rate Constants of Dissolution Derived from the Measurements of Mass Balance in Hydrological Catchments, Geochim. Cosmochim. Acta 47, 1855-1863. Schindler, P. W. (1982), in M. A. Anderson, and A. Rubin, Eds., Adsorption of Inorganics at Oxide Surfaces, Ann Arbor Science Publishers, Ann Arbor, MI, pp. 1-49. 

Each ad-atom has a certain lifetime on the substrate surface called the residence time of the ad-atom. The equation for the residence time of the ad-atoms is obtained by the reciprocal value of the rate constant of dissolution of the ad-atoms. 

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