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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
31 Benzene 71-43-2 C6H6 Overview Details
50 Cyclohexane 110-82-7 C6H12 Overview Details
89 Hexane 110-54-3 C6H14 Overview Details
91 Heptane 142-82-5 C7H16 Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 50 89 91 Heptane
31 Benzene 168 80 107
50 Cyclohexane 33 36
89 Hexane 25

Heats of Mixing (HE)
DDB# Name 50 89 91 Heptane
31 Benzene 137 22 32
50 Cyclohexane 93 18
89 Hexane 4

Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)
DDB# Name 50 89 91 Heptane
31 Benzene 15 15 27
50 Cyclohexane 12 9
89 Hexane 10

Heat Capacities of Mixtures, Excess Heat Capacities (CPE)
DDB# Name 50 89 91 Heptane
31 Benzene 16 1 5
50 Cyclohexane 3 12
89 Hexane 4

(A)zeotropic Data (AZD)
DDB# Name 50 89 91 Heptane
31 Benzene 180 62 80
50 Cyclohexane 31 30
89 Hexane 19

Solid-Liquid Equilibria (SLE)
DDB# Name 50 89 91 Heptane
31 Benzene 38 7 4
50 Cyclohexane 6 n.a.
89 Hexane n.a.

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 50 89 91 Heptane
31 Benzene 174 66 45
50 Cyclohexane 83 71
89 Hexane 42

Critical Data of Mixtures (CRI)
DDB# Name 50 89 91 Heptane
31 Benzene 4 3 2
50 Cyclohexane 3 3
89 Hexane 2

Mixture Viscosities (VIS)
DDB# Name 50 89 91 Heptane
31 Benzene 107 34 52
50 Cyclohexane 44 13
89 Hexane 10

Mixture Surface Tensions (MSFT)
DDB# Name 50 89 91 Heptane
31 Benzene 15 8 6
50 Cyclohexane 6 5
89 Hexane 1

Mixture Speeds of Sound (MSOS)
DDB# Name 50 89 91 Heptane
31 Benzene 65 17 10
50 Cyclohexane 7 3
89 Hexane 9

Mixture Thermal Conductivities (MTCN)
DDB# Name 50 89 91 Heptane
31 Benzene 3 32 2
50 Cyclohexane 1 n.a.
89 Hexane 49

Mixture Dielectric Constants (MDEC)
DDB# Name 50 89 91 Heptane
31 Benzene 3 2 1
50 Cyclohexane 1 n.a.
89 Hexane 1

Mixture P-v-T Data (MPVT)
DDB# Name 50 89 91 Heptane
31 Benzene 13 3 3
50 Cyclohexane 25 13
89 Hexane 3

Diffusion Coefficients (DIF)
DDB# Name 50 89 91 Heptane
31 Benzene 14 8 13
50 Cyclohexane n.a. 4
89 Hexane 6

Further Thermodynamic Properties (X)
DDB# Name 50 89 91 Heptane
31 Benzene 44 2 3
50 Cyclohexane 2 n.a.
89 Hexane 1

Total
DDB# Name 50 89 91 Heptane
31 Benzene 996 362 392
50 Cyclohexane 350 217
89 Hexane 186

Dortmund Data Bank Version: February 2024
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