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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB#
Name
CAS-RN
Formula
31
Benzene
71-43-2
C
6
H
6
Overview
Details
174
Water
7732-18-5
H
2
O
Overview
Details
1051
Methane
74-82-8
CH
4
Overview
Details
2187
Methyldiethanolamine (MDEA)
105-59-9
C
5
H
1
3
NO
2
Overview
Details
3865
Piperazine
110-85-0
C
4
H
1
0
N
2
Overview
Details
Search for mixtures containing this mixture as subsystem
Mixture Data
Number of available sets is shown
Vapor-Liquid Equilibria (
VLE
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
34
72
n.a.
n.a.
174
Water
260
32
7
1051
Methane
5
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Heats of Mixing (
HE
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
76
6
n.a.
n.a.
174
Water
65
7
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Gas Solubilities (
GLE
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
44
14
n.a.
n.a.
174
Water
128
n.a.
n.a.
1051
Methane
1
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Activity Coefficients at Infinite Dilution (Pure Solvents) (
ACT
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
291
n.a.
n.a.
n.a.
174
Water
n.a.
n.a.
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Liquid-Liquid Equilibria (Miscibility Gaps) (
LLE
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
183
n.a.
n.a.
n.a.
174
Water
n.a.
n.a.
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Heat Capacities of Mixtures, Excess Heat Capacities (
CPE
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
1
n.a.
n.a.
n.a.
174
Water
n.a.
69
13
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
4
(A)zeotropic Data (
AZD
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
54
5
n.a.
n.a.
174
Water
11
11
2
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Solid-Liquid Equilibria (
SLE
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
2
20
n.a.
n.a.
174
Water
1
6
7
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Densities and Volumes of Mixtures, Excess Volumes (
VE
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
159
n.a.
n.a.
n.a.
174
Water
17
145
21
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Critical Data of Mixtures (
CRI
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
10
n.a.
n.a.
n.a.
174
Water
5
n.a.
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Mixture Viscosities (
VIS
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
n.a.
8
n.a.
n.a.
174
Water
n.a.
157
42
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Mixture Surface Tensions (
MSFT
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
13
n.a.
n.a.
n.a.
174
Water
51
38
10
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Mixture Speeds of Sound (
MSOS
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
n.a.
n.a.
n.a.
n.a.
174
Water
n.a.
6
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Mixture Thermal Conductivities (
MTCN
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
n.a.
n.a.
n.a.
n.a.
174
Water
9
1
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Mixture Dielectric Constants (
MDEC
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
23
n.a.
n.a.
n.a.
174
Water
n.a.
4
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Mixture P-v-T Data (
MPVT
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
19
13
n.a.
n.a.
174
Water
20
67
6
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Mixture Flash Points (
MFLP
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
1
n.a.
n.a.
n.a.
174
Water
n.a.
n.a.
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Gas Hydrate Data (
GHD
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
n.a.
n.a.
n.a.
n.a.
174
Water
246
n.a.
n.a.
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Diffusion Coefficients (
DIF
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
3
1
n.a.
n.a.
174
Water
8
9
7
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Further Thermodynamic Properties (
X
)
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
28
7
n.a.
n.a.
174
Water
55
18
6
1051
Methane
n.a.
n.a.
2187
Methyldiethanolamine (MDEA)
n.a.
Total
DDB#
Name
174
1051
2187
3865
Piperazine
31
Benzene
941
146
n.a.
n.a.
174
Water
876
570
121
1051
Methane
6
n.a.
2187
Methyldiethanolamine (MDEA)
4
Dortmund Data Bank Version: February 2024
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