Table 5.2
Chemical and physical properties of chosen TPH
Compound
Molecular
wt.
Water solubility
(mg/L 25
C)
Specific
gravity
Vapor pressure
(mmHg 25
C)
Henry’s law constant
(atm-m
3
/mol 25
C)
Diffusivity
(cm
2
/s)
log P/
log K
ow
Log K
oc T
1/2 (days)
Benzene
78
1780
0.88
95
5.5 10
À3
9.30 10
À2
1.56–2.15
3.5
a
Toluene
92
490–627
0.87
28
6.7 10
À3
7.80 10
À2
2.11–2.8
4
a
Xylenes
106
162–200
0.87
6.6–8.8
6.3 10
À3
7.20 10
À2
2.77–3.2
7
a
Benzo[a] pyrene
252
3.8 10
À3
to 4 10
À3
1.35
5.5 10
À9
<2.4 10
À6
4.70 10
À2
5.81–6.50 5.00
530
b
Fluorene
166
1.66–1.98
1.2
1 10
À3
2.1 10
À4
5.70 10
À2
4.12–4.38 3.24
60
b
2-Methylnaphthalene 142
25
1.001
4.5 10
À2
3.4 10
À4
6.20 10
À2
3.86–4.11
Naphthalene
128
30–34
1.16
2.3 10
À1
4.6 10
À4
8.20 10
À2
3.2–4.7
2.44
48
b
Phenanthrene
178
7.1 10
À1
to 1.29 1.18
6.8 10
À4
2.6 10
À5
5.40 10
À2
4.2–4.6
3.49
200
b
Pyrene
202
1.3 10
À2
to 1.71
10
À1
1.27
6.85 10
À7
to
2.5 10
À5
1.1 10
À5
5.00 10
À2
4.88–5.32 3.87
1870
b
n-Hexane
86
18 (20
C)
0.66
1.2 10
À2
(20
C) 7.7 10
À1
7.50 10
À2
2.77
2
b
n-Heptane
100.21
3
6.87 10
À2
2.3 10
2
3.63
4
a
n-Octane
114.23
6.6 10
À1
1.88
3.0 10
2
4.91
4
a
n-Nonane
128.26
7 10
À2
5.71 10
À1
5.0 10
2
5.65
4.5
a
n-Decane
148.28
5.2 10
À2
1.75 10
À1
7.0 10
2
5.01–6.69
4.7
a
n-Undecane
156.32
6.94
5
a
n-Dodecane
170.33
6.10–7.24
5
a
n-Tetradecane
190.38
6.96 10
À3
1.27 10
À3
1.1 10
2
6.49–8.10
<15
b
, 5.6
a
n-Hexadecane
226.44
6.28 10
À3
9.17 10
À4
2.3 10
À1
8.86
6
a
n-Octadecane
254.4
2.1 10
À3
2.50 10
À5
2.9
8.92–10.39 5.90
6.3
a
n-Eicosane
282.6
1.9 10
À3
2.67 10
À6
2.9 10
À1
10.39
7.1
a
Increase of molecular weight among different compounds is connected with decrease of water solubility and often with increased hydrophobicity manifested by high
log P
or log K
ow values. Half-life time of a compound is positively correlated with molecular weight while vapor pressure is negatively correlated. (Modified from
Heath et al. 1993; Pasteris et al. 2002; Mackay et al. 2006; Paraíba et al. 2011; Toxnet 2016)
a
In water
b
In soil
244
A. Gielnik et al.
Chemical and physical properties of chosen TPH
Compound
Molecular
wt.
Water solubility
(mg/L 25
C)
Specific
gravity
Vapor pressure
(mmHg 25
C)
Henry’s law constant
(atm-m
3
/mol 25
C)
Diffusivity
(cm
2
/s)
log P/
log K
ow
Log K
oc T
1/2 (days)
Benzene
78
1780
0.88
95
5.5 10
À3
9.30 10
À2
1.56–2.15
3.5
a
Toluene
92
490–627
0.87
28
6.7 10
À3
7.80 10
À2
2.11–2.8
4
a
Xylenes
106
162–200
0.87
6.6–8.8
6.3 10
À3
7.20 10
À2
2.77–3.2
7
a
Benzo[a] pyrene
252
3.8 10
À3
to 4 10
À3
1.35
5.5 10
À9
<2.4 10
À6
4.70 10
À2
5.81–6.50 5.00
530
b
Fluorene
166
1.66–1.98
1.2
1 10
À3
2.1 10
À4
5.70 10
À2
4.12–4.38 3.24
60
b
2-Methylnaphthalene 142
25
1.001
4.5 10
À2
3.4 10
À4
6.20 10
À2
3.86–4.11
Naphthalene
128
30–34
1.16
2.3 10
À1
4.6 10
À4
8.20 10
À2
3.2–4.7
2.44
48
b
Phenanthrene
178
7.1 10
À1
to 1.29 1.18
6.8 10
À4
2.6 10
À5
5.40 10
À2
4.2–4.6
3.49
200
b
Pyrene
202
1.3 10
À2
to 1.71
10
À1
1.27
6.85 10
À7
to
2.5 10
À5
1.1 10
À5
5.00 10
À2
4.88–5.32 3.87
1870
b
n-Hexane
86
18 (20
C)
0.66
1.2 10
À2
(20
C) 7.7 10
À1
7.50 10
À2
2.77
2
b
n-Heptane
100.21
3
6.87 10
À2
2.3 10
2
3.63
4
a
n-Octane
114.23
6.6 10
À1
1.88
3.0 10
2
4.91
4
a
n-Nonane
128.26
7 10
À2
5.71 10
À1
5.0 10
2
5.65
4.5
a
n-Decane
148.28
5.2 10
À2
1.75 10
À1
7.0 10
2
5.01–6.69
4.7
a
n-Undecane
156.32
6.94
5
a
n-Dodecane
170.33
6.10–7.24
5
a
n-Tetradecane
190.38
6.96 10
À3
1.27 10
À3
1.1 10
2
6.49–8.10
<15
b
, 5.6
a
n-Hexadecane
226.44
6.28 10
À3
9.17 10
À4
2.3 10
À1
8.86
6
a
n-Octadecane
254.4
2.1 10
À3
2.50 10
À5
2.9
8.92–10.39 5.90
6.3
a
n-Eicosane
282.6
1.9 10
À3
2.67 10
À6
2.9 10
À1
10.39
7.1
a
Increase of molecular weight among different compounds is connected with decrease of water solubility and often with increased hydrophobicity manifested by high
log P
or log K
ow values. Half-life time of a compound is positively correlated with molecular weight while vapor pressure is negatively correlated. (Modified from
Heath et al. 1993; Pasteris et al. 2002; Mackay et al. 2006; Paraíba et al. 2011; Toxnet 2016)
a
In water
b
In soil
244
A. Gielnik et al.