Solvent Data - Heidolph Laborota 4000 efficient Betriebsanleitung

Appendix

11.3 Solvent data

Solvent
Acetone
Acetonitrile
Benzene
n-butanol (butyl alcohol)
Tert. butanol (tert. butyl alcohol)
2-butanone (methyl ethyl ketone)
Chlorobenzene
Cyclohexane
1,2-dichloroethane
1,2-dichloroethylene (cis)
1,2-dichloroethylene (trans)
Dichloromethane (methylene dichloride)
136
The nomogram shows the relationship between pressure and boiling
temperature of a selection of solvents.
The difference between the temperature of the vapour and the cooling medium
should be 20 K to ensure adequate condensation.
The temperature difference between the heating bath and the vapour should
be at least 20 K to ensure an adequate distillation rate.
As a rule of thumb, doubling the temperature difference will double the
distillation rate.
Fig. 11-1: Nomogram
Conversion Torr to mbar: [mmHg] ≈ 3/4 [mbar]
Solvent data
Empirical MW
formula [g/mol]
C H O 58.08
3 6
C H N 41.05
2 3
C H 78.11
6 6
C H O 74.12
4 10
C H O 74.12
4 10
C H O 72.11
4 8
C H CI 112.60
6 5
C H 84.16
6 12
C H CI 98.96
2 4 2
C H CI 96.94
2 2 2
C H CI 96.94
2 2 2
CH CI 84.93
2 2
Laborota 4000/4001 efficient, 4010/4011 digital, 4002/4003 control
ΔH
Boil. Vacuum for boil.at
vap
40 °C
[°C] [J/g]
[mbar]
56.5 550 556
81.8 833 230
80.1 549 236
117.5 619 25
82.9 588 130
79.6 473 243
132.2 375 36
80.7 389 235
82.4 336 210
59.0 320 479
47.8 313 751
40.7 373 atm.
[mm(Hg)]
387
173
177
19
98
182
27
176
158
134
563
atm.
1.02