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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB# Name CAS-RN Formula
91 Heptane 142-82-5 C7H16 Overview Details
174 Water 7732-18-5 H2O Overview Details
822 Methyl tert-butyl ether (MTBE) 1634-04-4 C5H12O Overview Details
1709 Carbonic acid diethyl ester 105-58-8 C5H10O3 Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 2 10 6
174 Water 2 2
822 Methyl tert-butyl ether (MTBE) 1

Heats of Mixing (HE)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 19 4 6
174 Water 3 n.a.
822 Methyl tert-butyl ether (MTBE) 1

Gas Solubilities (GLE)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 5 n.a. n.a.
174 Water 9 1
822 Methyl tert-butyl ether (MTBE) n.a.

Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 63 8 n.a.
174 Water 22 8
822 Methyl tert-butyl ether (MTBE) n.a.

Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 46 n.a. n.a.
174 Water 35 12
822 Methyl tert-butyl ether (MTBE) n.a.

Heat Capacities of Mixtures, Excess Heat Capacities (CPE)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane n.a. n.a. 3
174 Water n.a. n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

(A)zeotropic Data (AZD)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 20 7 6
174 Water 7 2
822 Methyl tert-butyl ether (MTBE) 1

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 42 40 9
174 Water n.a. n.a.
822 Methyl tert-butyl ether (MTBE) 1

Critical Data of Mixtures (CRI)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 12 1 1
174 Water n.a. n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

Mixture Viscosities (VIS)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 1 17 4
174 Water 2 n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

Mixture Surface Tensions (MSFT)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 14 n.a. n.a.
174 Water 1 n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

Mixture Speeds of Sound (MSOS)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane n.a. 4 4
174 Water 3 n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

Mixture P-v-T Data (MPVT)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 23 3 n.a.
174 Water n.a. n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

Diffusion Coefficients (DIF)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane n.a. n.a. 4
174 Water n.a. n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

Further Thermodynamic Properties (X)
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 12 n.a. n.a.
174 Water 2 n.a.
822 Methyl tert-butyl ether (MTBE) n.a.

Total
DDB# Name 174 822 1709 Carbonic acid diethyl ester
91 Heptane 259 94 43
174 Water 86 25
822 Methyl tert-butyl ether (MTBE) 4

Dortmund Data Bank Version: February 2024
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