Page 190 - Partition & Adsorption of Organic Contaminants in Environmental Systems

SORPTION FROM WATER SOLUTION 181

1200
Apparent Solubility of p,p'-DDT (µg/L) 800

400

0
0 100 200 300 400
Surfactant Concentration, X (mg/L)
Figure 7.32 Apparent water solubility of p,p¢-DDT as a function of TX100 ( ),TX114
( ), and BJ-35 ( ) concentration. [Data from Kile and Chiou (1989).]

TABLE 7.17. LogK mn and logK mc Values of p,p¢-DDT and 1,2,3-Trichlorobenzene
(TCB) Measured on Selected Surfactants

logK mn logK mc
Surfactant p,p¢-DDT 1,2,3-TCB p,p¢-DDT 1,2,3-TCB
Triton X-100 (TX100) 4.26 ND a 6.15 3.82
Triton X-114 (TX114) 4.59 ND 6.18 3.95
Triton X-405 (TX405) 3.92 ND 5.56 —
Brij 35 (BJ35) 4.18 ND 5.75 3.31
Sodium dodecyl sulfate 2.68 ND 5.38 3.54
(SDS)
Cetyltrimethylammonium 3.54 ND 5.88 3.80
bromide (CTAB)
Source: Data from Kile and Chiou (1989).
a
ND, not detectable.