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 Dortmund Data Bank
Thermophysical Data for Process Design
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DDB# Name CAS-RN Formula
25 Ethylbenzene 100-41-4 C8H10 Overview Details
31 Benzene 71-43-2 C6H6 Overview Details
161 Toluene 108-88-3 C7H8 Overview Details
174 Water 7732-18-5 H2O Overview Details
1050 Carbon dioxide 124-38-9 CO2 Overview Details
2187 Methyldiethanolamine (MDEA) 105-59-9 C5H13NO2 Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 7 15 4 17 n.a.
31 Benzene 64 34 46 n.a.
161 Toluene 8 120 n.a.
174 Water 363 32
1050 Carbon dioxide 3

Heats of Mixing (HE)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 4 4 n.a. n.a. n.a.
31 Benzene 28 76 4 n.a.
161 Toluene n.a. 41 n.a.
174 Water 60 7
1050 Carbon dioxide n.a.

Gas Solubilities (GLE)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. 22 3 n.a.
31 Benzene 1 44 20 n.a.
161 Toluene 49 24 n.a.
174 Water 403 n.a.
1050 Carbon dioxide 5

Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 3 2 86 n.a. n.a.
31 Benzene 5 291 n.a. n.a.
161 Toluene 190 n.a. n.a.
174 Water n.a. n.a.
1050 Carbon dioxide n.a.

Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. 59 n.a. n.a.
31 Benzene n.a. 183 n.a. n.a.
161 Toluene 136 n.a. n.a.
174 Water 37 n.a.
1050 Carbon dioxide n.a.

Heat Capacities of Mixtures, Excess Heat Capacities (CPE)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 23 1 n.a. n.a. n.a.
31 Benzene 6 1 n.a. n.a.
161 Toluene n.a. n.a. n.a.
174 Water n.a. 69
1050 Carbon dioxide n.a.

(A)zeotropic Data (AZD)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 8 14 9 3 n.a.
31 Benzene 69 54 15 n.a.
161 Toluene 36 26 n.a.
174 Water 29 11
1050 Carbon dioxide n.a.

Solid-Liquid Equilibria (SLE)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 4 2 n.a. n.a. n.a.
31 Benzene 11 2 n.a. n.a.
161 Toluene n.a. 1 n.a.
174 Water 1 6
1050 Carbon dioxide n.a.

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 19 18 n.a. n.a. n.a.
31 Benzene 52 159 1 n.a.
161 Toluene 2 8 n.a.
174 Water 26 145
1050 Carbon dioxide n.a.

Critical Data of Mixtures (CRI)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 1 1 2 1 n.a.
31 Benzene 4 10 5 n.a.
161 Toluene 10 6 n.a.
174 Water 13 n.a.
1050 Carbon dioxide n.a.

Mixture Viscosities (VIS)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 51 27 n.a. n.a. n.a.
31 Benzene 65 n.a. n.a. n.a.
161 Toluene 1 5 n.a.
174 Water 21 157
1050 Carbon dioxide n.a.

Mixture Surface Tensions (MSFT)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. n.a. 5 n.a.
31 Benzene 10 13 1 n.a.
161 Toluene 24 6 n.a.
174 Water 70 38
1050 Carbon dioxide n.a.

Mixture Speeds of Sound (MSOS)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. 1 n.a. n.a. n.a.
31 Benzene 9 n.a. n.a. n.a.
161 Toluene n.a. 10 n.a.
174 Water n.a. 6
1050 Carbon dioxide n.a.

Mixture Thermal Conductivities (MTCN)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. n.a. n.a. n.a.
31 Benzene 20 n.a. n.a. n.a.
161 Toluene n.a. n.a. n.a.
174 Water 2 1
1050 Carbon dioxide n.a.

Mixture Dielectric Constants (MDEC)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 5 n.a. n.a. n.a. n.a.
31 Benzene 13 23 n.a. n.a.
161 Toluene n.a. 1 n.a.
174 Water n.a. 4
1050 Carbon dioxide n.a.

Mixture P-v-T Data (MPVT)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 1 1 n.a. 12 n.a.
31 Benzene 7 19 4 n.a.
161 Toluene 33 109 n.a.
174 Water 173 67
1050 Carbon dioxide n.a.

Mixture Flash Points (MFLP)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. n.a. n.a. n.a.
31 Benzene n.a. 1 n.a. n.a.
161 Toluene n.a. n.a. n.a.
174 Water n.a. n.a.
1050 Carbon dioxide n.a.

Gas Hydrate Data (GHD)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. n.a. n.a. n.a.
31 Benzene n.a. n.a. n.a. n.a.
161 Toluene n.a. n.a. n.a.
174 Water 251 n.a.
1050 Carbon dioxide n.a.

Electrical Conductivities (ECND)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. n.a. n.a. n.a.
31 Benzene n.a. n.a. n.a. n.a.
161 Toluene n.a. n.a. n.a.
174 Water 8 n.a.
1050 Carbon dioxide n.a.

Diffusion Coefficients (DIF)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene n.a. n.a. n.a. 3 n.a.
31 Benzene 4 3 9 n.a.
161 Toluene 1 12 n.a.
174 Water 28 9
1050 Carbon dioxide n.a.

Further Thermodynamic Properties (X)
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 1 n.a. 10 n.a. n.a.
31 Benzene 4 28 3 n.a.
161 Toluene 19 11 n.a.
174 Water 103 18
1050 Carbon dioxide n.a.

Total
DDB# Name 31 161 174 1050 2187 Methyldiethanolamine (MDEA)
25 Ethylbenzene 127 86 192 44 n.a.
31 Benzene 372 941 108 n.a.
161 Toluene 509 380 n.a.
174 Water 1588 570
1050 Carbon dioxide 8

Dortmund Data Bank Version: February 2024
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