Properties of Selected Chemicals of Environmental Significance - Elements of Environmental Engineering: Thermodynamics and Kinetics - page 426

Vapor Aqueous

Log( K AW /

Molecular Pressure Solution Log

( P i ( C i /mol/dm 3 ) adm 3 /mol)

Compound Weight /kPa) ( K ow / [−] )

2. Organic Compounds

(i) Hydrocarbons d
Methane

2.8 × 10 4 4.1 × 10 − 1

16 4.85 1.12

4.0 × 10 3 8.1 × 10 − 2

Ethane 30 4.90 1.78

9.4 × 10 2 1.3 × 10 − 2

Propane 44 4.86 2.36

2.5 × 10 2 2.6 × 10 − 3

n -Butane 58 4.98 2.89

7.0 × 10 1 5.6 × 10 − 4 n -Pentane 72 5.10 3.62

2.0 × 10 1 1.5 × 10 − 4

n -Hexane 86 5.26 4.11

6.2 × 10 0 3.1 × 10 − 5

n -Heptane 100 5.31 4.66

1.9 × 10 0 6.3 × 10 − 6

n -Octane 114 5.51 5.18

1.7 × 10 − 1 2.7 × 10 − 7

n -Decane 142 5.85 6.70

1.2 × 10 1 2.3 × 10 − 2 Benzene 78 2.75 2.13

3.8 × 10 0 5.6 × 10 − 3

Toluene 92 2.83 2.69

1.3 × 10 0 1.6 × 10 − 3

Ethylbenzene 106 2.93 3.15

3.7 × 10 − 2 8.7 × 10 − 4 Naphthalene 128 1.69 3.36

9.0 × 10 − 5 3.4 × 10 − 5

Phenanthrene 178 0.55 4.57

10 − 5 10 − 5 Anthracene 178 7.8 × 3.3 × 0.36 4.54

10 − 6 10 − 6 Pyrene 202 4.0 × 4.4 × − 0.04 5.13

10 − 3 10 1

Cyclopentane 70 4.3 × 2.3 × 4.27 3.00

10 1 10 − 4

Cyclohexane 84 1.2 × 7.1 × 4.25 3.44

1.0 × 10 − 4

d -Limonene 136 0.26 1.88 4.57

1.7 × 10 − 4

β -Pinene 136 − 1.67 4.37

(ii) Acids and bases d , e
Acetic acid

1.6 × 10 0 1.0 × 10 2

60 − 1.99 − 0.17

4.5 × 10 − 1

n -Propionic acid 74 0.33

1.0 × 10 − 1 3.2 × 10 − 2

n -Butanoic 88 0.79

2.0 × 10 − 2 8.1 × 10 − 3 n -Pentanoic 102 0.99

6.0 × 10 − 3 9.4 × 10 − 2

n -Hexanoic 116 1.90

2.0 × 10 − 3 1.8 × 10 − 2

n -Heptanoic 130 2.72

(@293 K)

1.0 × 10 − 3 1.7 × 10 − 2

n -Octanoic 144 3.22

(@373 K)

Benzoic acid 122 2.7 × 10 − 2 − 2.15 1.87

(iii) Alcohols and phenols d , f , g
Butanol

9.3 × 10 − 1 1.0 × 10 0

74 − 0.24 0.88

3.4 × 10 − 1 3.0 × 10 − 1 Pentanol 88 0.17 1.16

1.4 × 10 − 1 1.3 × 10 − 1

Hexanol 102 0.25 2.03

1.5 × 10 − 2

Heptanol 116 0.34 2.41

6.8 × 10 − 3 4.4 × 10 − 3 Octanol 130 0.45 2.84

6.9 × 10 − 2 1.0 × 10 0

Phenol 94 − 1.34 1.48

10 − 1 10 − 1 2-Chlorophenol 128 1.9 × 2.2 × − 1.24 2.17

10 − 2 2,4-Dichlorophenol 163 2.7 × 2.75

10 − 3 10 − 3

2,4,6-Trichlorophenol 197 1.1 × 4.0 × − 2.20 3.38

10 − 5 10 − 5

Pentachlorophenol 266 1.5 × 5.2 × − 1.56 5.04

(@293 K)

continued