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
- Determine the residual equilibrium concentrations of citric acid of differing initial concentrations.
- Determine which of the adsorption isotherms is valid for the given system.
Learning objectives
- Adsorbent and adsorbate
- Henry Freundlich and Langmuir adsorption isotherms
- Volumetry
Necessary accessories
- Precision balance 620g/0.001g