Equilibrium Concentration for Ozone

Bunsen coefficient 13 (dimensionless) Normal Volume of ozone (calculated for STP) dissolved per volume of water at T, when the partial pressure of ozone in the gas phase is one standard atmosphere (= 101 325 Pa) (273.15 K/T) He 

Solubility ratio s (dimensionless) The ratio of the equilibrium liquid concentration to the ozone concentration in the gas (function of 7) I - ll 

Henry s Law constant H (dimensional) [atm (mol fraction)-1 or atm L mol 1] Relation between the ozone partial pressure in the gas and the molar dissolved ozone concentration in equilibrium (also named Henry s Law parameter) CL H= ° CL H P(Os) Hc P(03) CG CL S 

The concept of equilibrium distribution is another area where names can cause much confusion. The equilibrium distribution of a compound between the gas and liquid phase has been expressed in various forms, i. e. Bunsen coefficientfi, solubility ratio s, Henry s Law constant expressed dimensionless Hc, or with dimensions H. These are summarized in along with equations showing the relationships between them. Another more general term to describe the equilibrium concentrations between two phases is the partition coefficient, denoted by K. It is often used to describe the partitioning of a compound between two liquid phases. 

Not only have various names been used for the same concept, Morris (1988) found a variety of values for the equilibrium concentration of ozone in water reported in the literature. Based on the data from more than nine authors, he suggested that a linear correlation between the solubility ratio of ozone,, 5 (which is the inverse of the dimensionless Henry s Law constant Hc), and the temperature can be used as a first estimate for the solubility of ozone in water  

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