Page 260 - Partition & Adsorption of Organic Contaminants in Environmental Systems

252 INDEX

Freundlich equation, 43 polarity effect on, 60
analysis of sorption linearity, Table 7.13 substituent effect on, 64
Fugacity, 9 values, Tables 5.2 and 5.3, Figs. 5.2 and 5.4
reference states for gases, liquids, and Hexachlorobenzene
solids, 10 absorption by barley of, Table 8.2
relation to chemical potential, 10 bioconcentration into fish of, Table 5.6
K hw and K ow , Table 5.2
Gibbs free energy, see Free energy K tw, Table 5.5
Goethite S w , Table 5.1
adsorption of benzene and water vapors S w enhancement by surfactants, 179
on, Fig. 6.9 Hexane
surface area of, Table 6.1 partition limit in SOM of, Table 7.21
Group contribution, to partition coefficient, solubility parameter, Table 2.2
63 sorption to soil of lindane from, 193, 196
p X (oct-w), p X (hep-w), and D X values, sorption to soil of parathion from, 193, 196
Table 5.3 sorption to soil of PCBs from, 194, Fig. 7.37
vapor pressure of, Table 1.1
Heat of adsorption, 6, 39 Humic acid (HA)
isosteric heat, 50, 198, Fig. 7.38b peat HA as sorbent, 160
net and total heats, 47, 198 elemental contents of soil and aquatic
relation to heat of solution, 48, 51, 122 humic acids, Table 7.14
solutes from solution, 48, 193 surface area of peat HA, Table 7.12
vapors, 47 Humic substance
Heat of desorption, 51, 118 composition, 106
Heat of fusion, 11 13 C-NMR spectra of, soil and sediment
impact on heat of solution, 25, 34 samples, Fig. 7.15
relation to solid activity, 35 Humidity, see also Soil water content
relation to solid solubility, 69 effect on vapor sorption to soil, 200, 205,
Heat of partition, 34 Figs. 7.44 and 7.45
relation to heats of solution, 35, 118 effect on contaminant toxicity over soil, 213
solutes between phases, 117 Humin (HM)
vapors, 117, 201, 205 peat HM as sorbent, 160
Heat of solution, 24 surface area of peat HM, Table 7.12
excess heat of mixing, 34
liquids vs solids, 25, 34 Ideal solubility, 17, 69. See also Athermal
relation to heat of adsorption, 48, 51, solubility
122 solids in triolein, Table 5.4
relation to heat of partition, 35, 117, 119 Ideal solution
value for parathion in hexane, Fig. 7.38b definition, 15
values for polychlorinated dibenzo-p- graphic illustration, Figs. 2.1 and 2.2
dioxins in water, 25 Illite, sorption of EGME and N 2 on, Table 6.2
Heat of vaporization, 11 sorption of nitroaromatic solutes from
relation to heat of adsorption, 47, 51 water on, 166, Fig. 7.27
relation to heat of partition, 117, 205 Induced dipole-induced dipole forces, see
Henry’s law, 18, 115, 197 London forces
Heptachlor Intensive properties, definition, 6
absorption by crops of, 228, Table 8.4 Internal energy, definition, 2
toxicity over soil of, Table 7.22 change in closed systems, 2, 4
Heptachlor epoxide change in open systems, 7
absorption by crops of, 228, Table 8.4 relation to cohesive energy density, 27
sorption to soil of, impact of surfactant, 187, relation to enthalpy, 3
Table 7.20 Internal surface, 49, 92, 109. See also Surface
Heptane-water partition coefficient (K hw ), 59. area
See also Solvent–water partition Isolated system, definition, 4