Adsorption isotherms 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
Scope of delivery |
Retort stand, h = 750 mm
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37694-00
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2
| |
Burette clamp, roller mount., 2 pl.
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37720-00
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1
| |
Holder for 2 funnels, PP
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33401-00
|
1
| |
Magnetic stirrer without heating, 3 ltr., 230 V
|
35761-99
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2
| |
Magnetic stirring bar 30 mm, cylindrical
|
46299-02
|
2
| |
Separator for magnetic bars
|
35680-03
|
1
| |
Burette, lateral stopcock, Schellbach, 50 ml
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MAU-24022024
|
1
| |
Volumetric flasks, Boro, various sizes
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36552-00
|
1
| |
Volumetric flasks, Boro, various sizes
|
36550-00
|
6
| |
Bulb pipettes, various sizes
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36578-00
|
1
| |
Bulb pipettes, various sizes
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36580-00
|
1
| |
Bulb pipettes, various sizes
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36581-00
|
1
| |
Bulb pipettes, various sizes
|
36582-00
|
1
| |
Graduated pipettes, various sizes
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36602-00
|
1
| |
Pipettor
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36592-00
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1
| |
Pipette dish
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36589-00
|
1
| |
Erlenmeyer flask, Borosilicate, IGJ29/32, 250 ml
|
46126-00
|
6
| |
Stopper, PP, for IGJ 29/32
|
47508-00
|
6
| |
Erlenmeyer flasks, Boro, wide neck, various sizes
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46152-00
|
7
| |
Beakers, Boro, high form, various sizes
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46026-00
|
7
| |
Funnels (glass), Boro, various sizes
|
34457-00
|
7
| |
Round filters, 100 pcs., various sizes
|
32977-03
|
1
| |
Pasteur pipettes, 250 pcs
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36590-00
|
1
| |
Rubber caps, 10 pcs
|
39275-03
|
1
| |
Spoon, special steel
|
33398-00
|
2
| |
Wash bottle, plastic, 500 ml
|
33931-00
|
1
| |
Citric acid 250 g
|
30063-25
|
1
| |
Caustic soda solution, 1.0 m, 1000 ml
|
48329-70
|
1
| |
Phenolphthalein, 0,5% soution in ethanol, 100 ml
|
31715-10
|
1
| |
Activated carbon, granular 500 g
|
30011-50
|
1
| |
Water, distilled 5 l
|
31246-81
|
1
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Service
