Triethylene Glycol - The Dow Chemical Company

Properties
Figure 5: Vapor Pressures of
Aqueous Triethylene Glycol Solutions at Various Temperatures
Figure 5
Vapor Pressures of Aqueous Triethylene Glycol Solutions
at Various Temperatures
Vapor Presure, mm Hg
Triethylene Glycol 3-Constant Antoine Antoine Constants Equation for LogCalculating (P) = A – B/(T + Vapor C)
10 Pressure
P = mm Hg, T = °C
3-Constant Antoine Equation
Log 10 (P) = A – B/(T + C)
P = mm Hg, T = °C
T riE
G , W t%
0
50
70
80
90
95
97
98
99
99
. 5
100
10,000
6,000
4,000
2,000
1,000
600
400
200
40
60
100
4 6
20
10
2
1
0.6
0.4
-40 -20 0 20 40
Temperature, ˚F
80 120 160 200 240 300
Freezing Point
Curves
0.2
0.1
-40 -20 0 20 40 60 80 100 130 160
Temperature, ˚C
Triethylene Glycol Antoine Constants for Calculating Vapor Pressure
TriEG, Wt% A B C
0 7 959199 1663 545 227 575
50 7 922294 1671 501 228 031
70
80 A
7 878546
7 837076
1681 363
1697 006 B
228 237
228 769
90 7 726126 1728 047 229 823
95 7 620215 1806 257 236 227
97 7 495349 1841 522 238 048
98 7 404435 1881 474 240 666
99 7 211145 1926 114 242 799
99 5 7 042989 1970 802 242 865
100 7 472115 2022 898 152 573
7.
95
919
9
7.
92
22
94
7.
87
85
46
7.
837
076
7.
72
612
6
7.
62
0215
7.
49
53
49
7.
40
44
35
7.
21114
5
7.
04
29
89
7.
47211
5
13
166
3.
54
5
1671.
501
1681
. 36
3
169
7.
00
6
172
8.
047
180
6.
257
1841.
52
2
1881
. 474
192
6.
114
197
0.
80
2
20
22
. 89
8
C
0
50
70
80
90
95
97
98
99
99.5
100
Triethylene Glycol, Percent by Weight in Water
22
7.
575
22
8.
031
22
8.
237
22
8.
769
22
9.
82
3
23
6.
22
7
23
8.
04
8
24
0.
66
6
24
2.
79
9
24
2.
86
5
Properties
152
. 573