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12.3 Solvent data
The graph shows the relationship between the pressure and boiling temperature of a selection of solvents.
The temperature difference between the vapor temperature and the cooling medium
should be at 20 K to result in sufficient condensation.
The temperature difference between the heating bath and vapor temperature should be at
20 K to result in a sufficient Distillation rate (dT).
i.e.: Set a vacuum for a boiling point at 40 °C, set the heating bath temperature at 60 °C.
Figure 12-1: Graph
Torr to mbar conversion: [mmHg] ≈ 3/4 [mbar]
Solvent data
Solvents
Acetone
Acetonitrile
Benzene
n-butanol (butyl alcohol)
tert.-butanol (tert-butyl alcohol)
2-Butanone (methyl ethyl ketone)
Chlorobenzene
Cyclohexane
1.2 Dichloroethane
Hei-VAP Value, Hei-VAP Advantage
Total
MW
Boiling
formula
point
[g/mol]
[°C]
C
H
O
58,08
56,5
3
6
C
H
N
41,05
81,8
2
3
C
H
78,11
80,1
6
6
C
H
O
74,12
117,5
4
10
C
H
O
74,12
82,9
4
10
C
H
O
72,11
79,6
4
8
C
H
CI
112,60
132,2
6
5
C
H
84,16
80,7
6
12
C
H
CI
98,96
82,4
2
4
2
Appendix
ΔHvap
Vacuum for a
boiling point at
[J/g]
40 °C
[mbar]
[mm(Hg)]
550
556
387
833
230
173
549
236
177
619
25
19
588
130
98
473
243
182
375
36
27
389
235
176
336
210
158
EN
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