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Thermophysical Data for Process Design
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DDB# Name CAS-RN Formula
174 Water 7732-18-5 H2O 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 1051 2187 3865 Piperazine
174 Water 260 32 7
1051 Methane 5 n.a.
2187 Methyldiethanolamine (MDEA) n.a.

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

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

Heat Capacities of Mixtures, Excess Heat Capacities (CPE)
DDB# Name 1051 2187 3865 Piperazine
174 Water n.a. 69 13
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) 4

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

Solid-Liquid Equilibria (SLE)
DDB# Name 1051 2187 3865 Piperazine
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 1051 2187 3865 Piperazine
174 Water 17 145 21
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

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

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

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

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

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

Mixture Dielectric Constants (MDEC)
DDB# Name 1051 2187 3865 Piperazine
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 1051 2187 3865 Piperazine
174 Water 20 67 6
1051 Methane n.a. n.a.
2187 Methyldiethanolamine (MDEA) n.a.

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

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

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

Total
DDB# Name 1051 2187 3865 Piperazine
174 Water 876 570 121
1051 Methane 6 n.a.
2187 Methyldiethanolamine (MDEA) 4

Dortmund Data Bank Version: February 2024
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