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Diffusion coefficient of formic acid in water

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

Abstract

This chapter provides the diffusion coefficient of formic acid in water at different concentrations measured using Gouy interferometry and diaphragm cell.

3 Diffusion in Liquid Mixtures

3.1. Data

3.1.1. Diffusion in Binary Mixtures

C H2 O2

(1)

formic acid

64-18-6

H2 O

(2)

water

7732-18-5

Mutual Diffusion Coefficient: D12(x i ); T = 298.15 ± 0.01 K; Method: G-INT

Ref.: [1965D3]

c1 [mol/L]

p [kPa]

D ⋅ 109 [m2/s]

 

0.1494

101.32

1.500

 

0.1792

101.32

1.492

 

0.3235

101.32

1.484

 

0.4960

101.32

1.462

 

0.8571

101.32

1.439

 

1.2825

101.32

1.409

 

1.4797

101.32

1.402

 

2.1608

101.32

1.373

 

Mutual Diffusion Coefficient: D12(x i ); T = 298.15 ± 0.01 K; Method: DIA

Ref.: [1967A7]

c1 [mol/L]

p [kPa]

D ⋅ 109 [m2/s]

 

0.0749

101.32

1.46

 

Comment: background salt concentration: 0.0100 mol/L potassium formiate

Mutual Diffusion Coefficient: D12(x i ); T = 298.15 ± 0.1 K; Method: DIA

Ref.: [1963B1]

c1 [mol/L]

p [kPa]

D ⋅ 109 [m2/s]

 

0.06

101.32

1.516 ± 0.5%

 

Mutual Diffusion Coefficient: D12(c1); Method: G-INT

Ref.: [1965D3]

Equation: D = A + B x + C x2

Range: 0.0 < c1/mol L−1 < 2.16

Comment: D12 [m2/s] = D ∙ 10−9; x = molarity c1 [mol/L]

Parameter:

T [K]

A

B

C

Std-Dev

 

298.15

1.5139

−0.10893

0.020397

0.16%

Symbols and Abbreviations

Short Form

Full Form

D

diffusion coefficient

p

pressure

T

temperature

INT

interferometry

G-INT

Gouy interferometry

DIA

diaphragm cell

c i

molarity

References

  1. [1963B1]
    Bidstrup, D. E., Geankoplis, C. J.: J. Chem. Eng. Data 8 (1963) 170–173.CrossRefGoogle Scholar
  2. [1965D3]
    Dunn, L. A., Stokes, R. H.: Aust. J. Chem. 18 (1965) 285–296.CrossRefGoogle Scholar
  3. [1967A7]
    Albery W. J., Greenwood, A. R., Kibble, R. F.: Trans. Faraday Soc. 63 (1967) 360–368.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

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