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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB# Name CAS-RN Formula
41 n-Butane 106-97-8 C4H10 Overview Details
72 N,N-Dimethylformamide (DMF) 68-12-2 C3H7NO Overview Details
316 2-Methylpropane 75-28-5 C4H10 Overview Details
368 1-Butene 106-98-9 C4H8 Overview Details
450 trans-2-Butene 624-64-6 C4H8 Overview Details
460 cis-2-Butene 590-18-1 C4H8 Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane 2 43 16 5 12
72 N,N-Dimethylformamide (DMF) n.a. 2 6 10
316 2-Methylpropane 4 n.a. n.a.
368 1-Butene n.a. n.a.
450 trans-2-Butene 5

Gas Solubilities (GLE)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane 14 n.a. n.a. n.a. 1
72 N,N-Dimethylformamide (DMF) 4 24 13 5
316 2-Methylpropane n.a. 1 1
368 1-Butene n.a. n.a.
450 trans-2-Butene n.a.

Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane 18 n.a. n.a. n.a. n.a.
72 N,N-Dimethylformamide (DMF) 1 27 6 2
316 2-Methylpropane n.a. n.a. n.a.
368 1-Butene n.a. n.a.
450 trans-2-Butene n.a.

Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane 1 n.a. n.a. n.a. n.a.
72 N,N-Dimethylformamide (DMF) n.a. n.a. n.a. n.a.
316 2-Methylpropane n.a. n.a. n.a.
368 1-Butene n.a. n.a.
450 trans-2-Butene n.a.

(A)zeotropic Data (AZD)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane 1 18 10 11 9
72 N,N-Dimethylformamide (DMF) n.a. 2 3 6
316 2-Methylpropane 2 n.a. n.a.
368 1-Butene n.a. 2
450 trans-2-Butene 7

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane n.a. 58 n.a. n.a. n.a.
72 N,N-Dimethylformamide (DMF) n.a. n.a. n.a. n.a.
316 2-Methylpropane n.a. n.a. n.a.
368 1-Butene n.a. n.a.
450 trans-2-Butene n.a.

Critical Data of Mixtures (CRI)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane n.a. n.a. n.a. n.a. n.a.
72 N,N-Dimethylformamide (DMF) n.a. n.a. n.a. n.a.
316 2-Methylpropane 1 n.a. n.a.
368 1-Butene n.a. n.a.
450 trans-2-Butene n.a.

Mixture Viscosities (VIS)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane n.a. 5 n.a. n.a. n.a.
72 N,N-Dimethylformamide (DMF) n.a. n.a. n.a. n.a.
316 2-Methylpropane n.a. n.a. n.a.
368 1-Butene n.a. n.a.
450 trans-2-Butene n.a.

Mixture P-v-T Data (MPVT)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane n.a. 6 n.a. n.a. n.a.
72 N,N-Dimethylformamide (DMF) n.a. n.a. n.a. n.a.
316 2-Methylpropane n.a. n.a. n.a.
368 1-Butene n.a. n.a.
450 trans-2-Butene n.a.

Further Thermodynamic Properties (X)
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane n.a. n.a. n.a. n.a. n.a.
72 N,N-Dimethylformamide (DMF) n.a. n.a. n.a. n.a.
316 2-Methylpropane n.a. n.a. n.a.
368 1-Butene 1 n.a.
450 trans-2-Butene 1

Total
DDB# Name 72 316 368 450 460 cis-2-Butene
41 n-Butane 36 130 26 16 22
72 N,N-Dimethylformamide (DMF) 5 55 28 23
316 2-Methylpropane 7 1 1
368 1-Butene 1 2
450 trans-2-Butene 13

Dortmund Data Bank Version: February 2024
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