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Dortmund Data Bank
Thermophysical Data for Process Design
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Query
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DDB#
Name
CAS-RN
Formula
122
Undefined
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
1292
Helium
7440-59-7
He
Overview
Details
1942
Propyne
74-99-7
C
3
H
4
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
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
30
20
4
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Heats of Mixing (
HE
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
16
n.a.
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Gas Solubilities (
GLE
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
1
42
9
284
N-Methyl-2-pyrrolidone
n.a.
13
1292
Helium
n.a.
Activity Coefficients at Infinite Dilution (Pure Solvents) (
ACT
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
13
n.a.
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
1
1292
Helium
n.a.
Heat Capacities of Mixtures, Excess Heat Capacities (
CPE
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
21
n.a.
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
(A)zeotropic Data (
AZD
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
27
3
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Solid-Liquid Equilibria (
SLE
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
5
n.a.
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Densities and Volumes of Mixtures, Excess Volumes (
VE
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
253
n.a.
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Critical Data of Mixtures (
CRI
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
n.a.
1
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Mixture Viscosities (
VIS
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
34
2
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Mixture Surface Tensions (
MSFT
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
5
13
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Mixture Speeds of Sound (
MSOS
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
12
n.a.
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Mixture Dielectric Constants (
MDEC
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
10
n.a.
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Mixture P-v-T Data (
MPVT
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
n.a.
3
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Diffusion Coefficients (
DIF
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
4
4
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Further Thermodynamic Properties (
X
)
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
3
5
n.a.
284
N-Methyl-2-pyrrolidone
n.a.
n.a.
1292
Helium
n.a.
Total
DDB#
Name
174
284
1292
1942
Propyne
122
Undefined
n.a.
n.a.
n.a.
n.a.
174
Water
434
93
13
284
N-Methyl-2-pyrrolidone
n.a.
14
1292
Helium
n.a.
Dortmund Data Bank Version: February 2024
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