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Adsorption isotherms

Adsorption isotherms

Item no.: P3040801

Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
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Principle

In general, the term adsorption is used to describe the attachment of gases or dissolved substances to the surface of a solid or liquid. At constant temperature, the quantity of adsorbed substances is a function of the type of system investigated and the partial pressure and / or concentration of the substance concerned. The correlation is described by a number of adsorption isotherms. The rivalidity is to be investigated experimentally.

Benefits

  • High quality glassware for good results
  • Stable and safe construction due to solid stand material

Tasks

  1. Determine the residual equilibrium concentrations of citric acid after stirring solutions of differing initial concentrations with a constant mass of activated carbon.
  2. Use the measurement results to determine which of the adsorption isotherms is valid for the given system.

What you can learn about

  • Adsorbent and adsorbate
  • Henry Freundlich and Langmuir adsorption isotherms
  • Volumetry

Necessary accessories

  • Precision balance 620g/0.001g

 

Document     Filesize
p3040801e.pdf Experiment guide, English 339.57 KB

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