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Thermophysical Data for Process Design
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DDB#
Name
CAS-RN
Formula
91
Heptane
142-82-5
C
7
H
1
6
Overview
Details
161
Toluene
108-88-3
C
7
H
8
Overview
Details
174
Water
7732-18-5
H
2
O
Overview
Details
284
N-Methyl-2-pyrrolidone
872-50-4
C
5
H
9
NO
Overview
Details
Search for mixtures containing this mixture as subsystem
Mixture Data
Number of available sets is shown
Vapor-Liquid Equilibria (
VLE
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
52
2
12
161
Toluene
8
10
174
Water
30
Heats of Mixing (
HE
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
18
19
5
161
Toluene
n.a.
11
174
Water
16
Gas Solubilities (
GLE
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
n.a.
5
n.a.
161
Toluene
49
1
174
Water
1
Activity Coefficients at Infinite Dilution (Pure Solvents) (
ACT
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
9
63
84
161
Toluene
190
47
174
Water
13
Liquid-Liquid Equilibria (Miscibility Gaps) (
LLE
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
n.a.
46
9
161
Toluene
136
n.a.
174
Water
n.a.
Heat Capacities of Mixtures, Excess Heat Capacities (
CPE
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
8
n.a.
n.a.
161
Toluene
n.a.
4
174
Water
21
(A)zeotropic Data (
AZD
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
44
20
5
161
Toluene
36
9
174
Water
27
Solid-Liquid Equilibria (
SLE
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
3
n.a.
n.a.
161
Toluene
n.a.
1
174
Water
5
Densities and Volumes of Mixtures, Excess Volumes (
VE
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
49
42
3
161
Toluene
2
14
174
Water
253
Critical Data of Mixtures (
CRI
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
n.a.
12
1
161
Toluene
10
n.a.
174
Water
n.a.
Mixture Viscosities (
VIS
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
18
1
n.a.
161
Toluene
1
10
174
Water
34
Mixture Surface Tensions (
MSFT
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
5
14
1
161
Toluene
24
n.a.
174
Water
5
Mixture Speeds of Sound (
MSOS
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
8
n.a.
1
161
Toluene
n.a.
1
174
Water
12
Mixture Thermal Conductivities (
MTCN
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
5
n.a.
n.a.
161
Toluene
n.a.
n.a.
174
Water
n.a.
Mixture Dielectric Constants (
MDEC
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
n.a.
n.a.
n.a.
161
Toluene
n.a.
n.a.
174
Water
10
Mixture P-v-T Data (
MPVT
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
3
23
n.a.
161
Toluene
33
n.a.
174
Water
n.a.
Diffusion Coefficients (
DIF
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
6
n.a.
n.a.
161
Toluene
1
n.a.
174
Water
4
Further Thermodynamic Properties (
X
)
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
1
12
2
161
Toluene
19
n.a.
174
Water
3
Total
DDB#
Name
161
174
284
N-Methyl-2-pyrrolidone
91
Heptane
229
259
123
161
Toluene
509
108
174
Water
434
Dortmund Data Bank Version: February 2024
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