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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
174 Water 7732-18-5 H2O Overview Details
1050 Carbon dioxide 124-38-9 CO2 Overview Details
1051 Methane 74-82-8 CH4 Overview Details
2187 Methyldiethanolamine (MDEA) 105-59-9 C5H13NO2 Overview Details
3865 Piperazine 110-85-0 C4H10N2 Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 363 260 32 7
1050 Carbon dioxide 178 3 n.a.
1051 Methane 5 n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Heats of Mixing (HE)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 60 65 7 n.a.
1050 Carbon dioxide 84 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Gas Solubilities (GLE)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 403 128 n.a. n.a.
1050 Carbon dioxide n.a. 5 n.a.
1051 Methane 1 n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 37 n.a. n.a. n.a.
1050 Carbon dioxide 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 1050 1051 2187 3865 Piperazine
174 Water n.a. n.a. 69 13
1050 Carbon dioxide n.a. n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) 4

(A)zeotropic Data (AZD)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 29 11 11 2
1050 Carbon dioxide 65 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Solid-Liquid Equilibria (SLE)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 1 1 6 7
1050 Carbon dioxide 31 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 26 17 145 21
1050 Carbon dioxide 31 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Critical Data of Mixtures (CRI)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 13 5 n.a. n.a.
1050 Carbon dioxide 13 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Mixture Viscosities (VIS)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 21 n.a. 157 42
1050 Carbon dioxide 36 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Mixture Surface Tensions (MSFT)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 70 51 38 10
1050 Carbon dioxide 2 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Mixture Speeds of Sound (MSOS)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water n.a. n.a. 6 n.a.
1050 Carbon dioxide n.a. n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Mixture Thermal Conductivities (MTCN)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 2 9 1 n.a.
1050 Carbon dioxide 22 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Mixture Dielectric Constants (MDEC)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water n.a. n.a. 4 n.a.
1050 Carbon dioxide n.a. n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Mixture P-v-T Data (MPVT)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 173 20 67 6
1050 Carbon dioxide 134 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Gas Hydrate Data (GHD)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 251 246 n.a. n.a.
1050 Carbon dioxide n.a. n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Electrical Conductivities (ECND)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 8 n.a. n.a. n.a.
1050 Carbon dioxide n.a. n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Diffusion Coefficients (DIF)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 28 8 9 7
1050 Carbon dioxide 7 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Further Thermodynamic Properties (X)
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 103 55 18 6
1050 Carbon dioxide 50 n.a. n.a.
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

Total
DDB# Name 1050 1051 2187 3865 Piperazine
174 Water 1588 876 570 121
1050 Carbon dioxide 653 8 n.a.
1051 Methane 6 n.a.
2187 Methyldiethanolamine (MDEA) 4

Dortmund Data Bank Version: February 2024
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