19
BÜCHI
Rotavapor
R-187EL
5.4 Solvent table
5 Operating the Rotavapor
Solvent
Formula
Molary weight
Energy of
Boiling point in °C Tightness
Vacuum in mbar
in g/mol
evaporation in J/g
at 1013 mbar
in g/cm
3
for boiling at 40 ºC
Acetic acid
C
2
H
4
O
2
60.0
6 9 5
11 8
1.049
4 4
Aceton
C
3
H
6
O
58.1
5 5 3
5 6
0.790
5 5 6
N-Amylalcohol, n-Pentanol
C
5
H
12
O
88.1
5 9 5
3 7
0.814
1 1
Benzene
C
6
H
6
78.1
5 4 8
8 0
0.877
2 3 6
n-Butanol, tert. Butanol
C
4
H
10
O
74.1
6 2 0
11 8
0.810
2 5
2-Methyl-2-Propanol
C
4
H
10
O
74.1
5 9 0
8 2
0.789
1 3 0
Carbontetrachloride, tetra Chloromethane CCI
4
153.8
2 2 6
7 7
1.594
2 7 1
Chlorobenzene
C
6
H
5
CI
112.6
3 7 7
132
1.106
3 6
Chloroform
CHCI
3
119.4
2 6 4
6 2
1.483
4 7 4
Cyclohexane
C
6
H
12
84.0
3 8 9
8 1
0.779
2 3 5
Diethyl ether
C
4
H
10
O
74.0
3 8 9
3 5
0.714
850*
1, 2,-Dichloroethane
C
2
H
4
CI
2
99.0
3 3 5
8 4
1.235
2 1 0
1,2,-Dichloroethylene (cis)
C
2
H
2
CI
2
97.0
3 2 2
6 0
1.284
4 7 9
1,2,-Dichloroethylene (trans)
C
2
H
2
CI
2
97.0
3 1 4
4 8
1.257
7 5 1
Di isopropyl ether
C
6
H
14
O
102.0
3 1 8
6 8
0.724
3 7 5
Dioxane
C
4
H
8
O
2
88.1
4 0 6
101
1.034
1 0 7
DMF (Dimethylformamide)
C
3
H
7
NO
73.1
153
0.949
1 1
Ethanol
C
2
H
6
O
46.0
8 7 9
7 9
0.789
1 7 5
Ethyl acetat
C
4
H
8
O
2
88.1
3 9 4
7 7
0.900
2 4 0
Heptane
C
7
H
16
100.2
3 7 3
9 8
0.684
1 2 0
Hexane
C
6
H
14
86.2
3 6 8
6 9
0.660
3 3 5
Isopropyl alcohol
C
3
H
8
O
60.1
6 9 9
8 2
0.786
1 3 7
Isoamyl alcohol, 3-Methyl-1-Butanol
C
5
H
12
O
88.1
5 9 5
129
0.809
1 4
Methyl ethyl ketone
C
4
H
8
O
72.1
4 7 3
8 0
0.805
2 4 3
Methanol
CH
4
O
32.0
1 2 2 7
6 5
0.791
3 3 7
Methylenechloride, Dichloromethane
CH
2
CI
2
84.9
3 7 3
4 0
1.327
850*
Pentane
C
5
H
12
72.1
3 8 1
3 6
0.626
850*
n-Propyl alcohol
C
3
H
8
O
60.1
7 8 7
9 7
0.804
6 7
Pentachlorethane
C
2
HCI
5
202.3
2 0 1
162
1.680
1 3
1,1, 2,2,-Tetrachloroethane
C
2
H
2
CI
4
167.9
2 4 7
146
1.595
3 5
1,1,1,-Trichloroethane
C
2
H
3
CI
3
133.4
2 5 1
7 4
1.339
3 0 0
Tetrachloroethylene
C
2
CI
4
165.8
2 3 4
1 2 1
1.623
5 3
THF (Tetrahydrofurane)
C
4
H
8
O
72.1
6 7
0.889
3 5 7
Toluene
C
7
H
8
92.2
4 2 7
111
0.867
7 7
Trichloroethylene
C
2
HCI
3
131.3
2 6 4
8 7
1.464
1 8 3
Water
H
2
O
18.0
2 2 6 1
100
1.000
7 2
Xylene (Isomers mixture)
C
8
H
10
106.2
3 8 9
2 5
(o)
144
0.880
(m)
139
0.864
(p)
138
0.861
Table 2: Solvents
* only possible when cooling water is 20°C