Quantitative solubility data for the system 2-nitropropane (1) + water (2) were reported in the publications listed in Table 1.
The original data are given in the data sheets immediately following this Critical Evaluation.
All reported data are used in the table below.
Values obtained by the evaluator by graphical interpolation or extrapolation from the data sheets are presented in the Table 2 and Table 3. Data are"recommended" if two or more apparently reliable studies are is reasonable (± 5 % relative) agreement. All other data are regarded as tentative only.
The solubility of 2-nitropropane in water (x1) and solubility of water in 2-nitropropane (x2
) reported in the above table have been approximated by an equations:
x1 = 3·10-13·(T/K)6 - 5·10-10·(T/K)5 + 4·10-7·(T/K)4- 2·10-4·(T/K)3+ 0.0452·(T/K)2 - 5.8977·(T/K) + 319.61,
x2 = -4·10-9·(T/K)4 + 5·10-6·(T/K)3 - 0.0021·(T/K)2 + 0.4279·(T/K) - 32.508,
(mean standard error of estimate was 0.0112).
This relationship is presented in Fig. 13 together with experimental data as reported in three studies.1-3