The solubilities of 3-methoxy-N-phenylaniline and 3-(methylthio)-Nphenylaniline in pure organic solvents of methanol, acetone, ethyl acetate, chloroform, and 1,2-dichloroethane were measured at temperatures ranging from 285 K to 333.75 K using the laser monitoring dynamic method. The experimental data were correlated with the Apelblat equation; the solubilities correlated by the model are in good agreement with experimental values. The mean relative deviations σ are less than 1.5 % and the root-mean-square deviations (rmsd) less than 0.10 %.

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The solubility data of benzyl disulfide were measured using the synthetic method and laser monitoring technique under atmospheric pressure in five solvents (ethanol, n-hexane, ethyl acetate, toluene, and chloroform), with the temperature ranging from (283.45 to 333.15) K. The experimental data in each solvent were fitted by the modified Apelblat equation with good agreement. For all of the experimental solubility data in five solvents, the root-mean-square was less than 0.52 %, whereas the average absolute relative error was less than 2.0 %.

The solubility data of 4,4′-dichlorodiphenyl disulfide in solvents (ethanol, methanol, ethyl acetate, methylbenzene, chloroform, acetone) were measured between (303.15 and 333.15) K under atmospheric pressure using synthetic method and laser monitoring technique. The experimental data was correlated with the Apelblat equation and measured up to experimental data. For six solvents studied, the average relative errors σ are all less than 2.6 %, and the root-mean-square deviations are all less than 0.45 %.

The solubilities of 4-amino-4′-nitrodiphenyl sulfide in n-butanol, ethyl acetate, chlorobenzene, toluene, dichloromethane, and chloroform were determined between 287.45 K and 365.55 K (p = 0.1 MPa) using a laser monitoring dynamic technique and synthetic method. The solubilities determined were well-correlated with the modified Apelblat equation with the mean relative deviation (σ) no more than 1.27 % and the root-mean-square deviation (rmsd) no more than 0.07 %.

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