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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