*3.3. Determination of Boron Transport Coefficients*

Since the data regarding boron are not available in the data of Avlonitis et al. [29] for the FilmTec module, parameters are fitted here only for the Saehan module based on the data of Mane et al. [23].

This is possible through plotting *B<sup>B</sup>* (calculated using Equation (33)) against *α*<sup>0</sup> (calculated using Equation (30)) giving the plot and linear fit shown in Figure 5. The gradient and intercept of this linear fit are used to calculate *B*(*H*3*BO*3)<sup>0</sup> and *B*(*H*2*BO*<sup>3</sup> −)0 as given in Table 2.
