Organic phase equilibrated, nitrate concentration

Figure 3. Nitrate concentration in the equilibrated organic phase as a function of the initial Nd(NOs)s concentration...

The calculated free equilibrium HDEHP dimer concentration using Equation 12 is illustrated in Table VI. The relationship of the equilibrated HDEHP dimer molar concentration with the total neodymium concentration and the total nitrate concentration in the organic phase is shown in Figures 5 and 6, respectively. 

Aerosol particles in the atmosphere contain a variety of volatile compounds (ammonium, nitrate, chloride, volatile organic compounds) that can exist either in the particulate or in the gas phase. We estimate in this section the timescales for achieving thermodynamic equilibrium between these two phases and apply them to typical atmospheric conditions. The problem is rather different compared to the equilibration between the gas and aqueous phases in a cloud discussed in the previous section. Aerosol particles are solid or concentrated aqueous solutions (cloud droplets are dilute aqueous solutions), they are relatively small, and aqueous-phase reactions in the aerosol phase can be neglected to a first approximation because of the small liquid water content. 

Figure 17. Distribution of uranyl nitrate between dlbutyl carbltol and nitric acid solution. Adapted from C. A. Kraus reference 353. Conditions Approximately eqxial volumes of organic and aqueous phase. Initially at the uranium and nitric acid concentrations Indicated, equilibrated at about 27°C. 

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