Advertisement

Diffusion coefficient of heptane in octane

  • Jochen Winkelmann
Chapter
Part of the Physical Chemistry book series (volume 15B2)

Abstract

This chapter provides the diffusion coefficient of heptane in octane at different concentrations measured using Taylor dispersion technique.

3 Diffusion in Liquid Mixtures

3.1. Data

3.1.1. Diffusion in Binary Mixtures

C7 H16

(1)

heptane

142-82-5

C8 H10

(2)

ethylbenzene

100-41-4

Mutual Diffusion Coefficient: D12(x i ); T = 313.15 ± 0.1 K; Method: TAYLOR

Ref.: [1995C3]

x 1

p [kPa]

D ⋅ 109 [m2/s]

 

0.0007

101.32

2.45 ± 0.08

 

0.2039

101.32

2.38 ± 0.03

 

0.3994

101.32

2.46 ± 0.09

 

0.5909

101.32

2.58 ± 0.10

 

0.8050

101.32

3.10 ± 0.11

 

0.9991

101.32

3.70 ± 0.06

 

Mutual Diffusion Coefficient: D12(x i ); T = 333.15 ± 0.1 K; Method: TAYLOR

Ref.: [1995C3]

x 1

p [kPa]

D ⋅ 109 [m2/s]

 

0.0011

101.32

3.01 ± 0.09

 

0.1986

101.32

2.91 ± 0.08

 

0.4021

101.32

3.02 ± 0.11

 

0.6061

101.32

3.43 ± 0.12

 

0.8063

101.32

3.91 ± 0.15

 

0.9990

101.32

4.32 ± 0.17

 

Mutual Diffusion Coefficient: D12(x1); Method: TAYLOR

Ref.: [1995C3]

Equation: D = A + B x + C x2 + E x3

Range: 0.0 < x1 < 1.0

Comment: D12 [m2/s] = D ∙ 10−9

Parameter:

T [K]

A

B

C

E

Std-Dev

 

313.15

2.44018

−0.97712

2.25089

−0.03599

0.016E-09

 

333.15

3.02119

−1.66025

5.21207

−2.24451

0.006E-09

Symbols and Abbreviations

Short Form

Full Form

D

diffusion coefficient

p

pressure

T

temperature

TAYLOR

Taylor dispersion technique

x i

mole fraction

References

  1. [1995C3]
    Chen, G., Hou, Y., Knapp, H.: J. Chem. Eng. Data 40 (1995) 1005–1010.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany 2018

Authors and Affiliations

  • Jochen Winkelmann
    • 1
  1. 1.Universität Halle-Wittenberg, Institut für Physikalische ChemieHalle/S.Germany

Personalised recommendations