Solubility of 2,4-Dinitrotoluene and 2,4,6-Trinitrotoluene in Seawater

The solubility of 2,4-dinitrotoluene (2,4-DNT) and 2,4,6-trinitrotoluene (2,4,6-TNT) in seawater with ionic strength = (0.3352, 0.5071, and 0.6820) mol·L -1 and pure water was measured at 4 °C, 20 °C, 30 °C, and 40 °C. The pure water solubility values compare well with values reported previously. The solubility in seawater was lower than that in pure water. The average salting-out coefficients for 2,4-DNT and 2,4,6-TNT were (0.11 and 0.12) L·mol -1, respectively, which are consistent with measurements for other nitroaromatic compounds. The salting-out coefficients did not show any significant variation with temperature over the range examined.