Adsorption isotherms

Item No. P3040801 | Type: Experiments

10 Minutes
20 Minutes
University
Teachers/Professors , Students
heavy
EUR 895.30
Content 1 piece
EUR 1,065.41 Incl. VAT



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 of differing initial concentrations.
  2. 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

 

Device name
Item No.
Quantity
Retort stand, h = 750 mm
Item No. 37694-00
2
Burette clamp, roller mount., 2 pl.
Item No. 37720-00
1
Holder for 2 funnels, PP
Item No. 33401-00
1
Magnetic stirrer without heating, 3 ltr., 230 V
Item No. 35761-99
2
Magnetic stirring bar 30 mm, cylindrical
Item No. 46299-02
2
Separator for magnetic bars
Item No. 35680-03
1
Burette, lateral stopcock, Schellbach, 50 ml
Item No. MAU-24022024
1
Volumetric flasks, Boro, various sizes | Volume: 1000 ml
Item No. 36552-00
1
Volumetric flasks, Boro, various sizes | Volume: 250 ml
Item No. 36550-00
6
Bulb pipettes, various sizes | Volume: 10 ml
Item No. 36578-00
1
Bulb pipettes, various sizes | Volume: 25 ml
Item No. 36580-00
1
Bulb pipettes, various sizes | Volume: 50 ml
Item No. 36581-00
1
Bulb pipettes, various sizes | Volume: 100 ml
Item No. 36582-00
1
Graduated pipettes, various sizes | Volume: 25 ml
Item No. 36602-00
1
Pipettor
Item No. 36592-00
1
Pipette dish
Item No. 36589-00
1
Erlenmeyer flask, Borosilicate, IGJ29/32, 250 ml
Item No. 46126-00
6
Stopper, PP, for IGJ 29/32
Item No. 47508-00
6
Erlenmeyer flasks, Boro, wide neck, various sizes | Volume: 250 ml
Item No. 46152-00
7
Beakers, Boro, high form, various sizes | Volume: 100 ml
Item No. 46026-00
7
Funnels (glass), Boro, various sizes | Top diameter: 50 mm
Item No. 34457-00
7
Round filters, 100 pcs., various sizes | diameter: 90 mm
Item No. 32977-03
1
Pasteur pipettes, 250 pcs
Item No. 36590-00
1
Rubber caps, 10 pcs
Item No. 39275-03
1
Spoon, special steel
Item No. 33398-00
2
Wash bottle, plastic, 500 ml
Item No. 33931-00
1
Citric acid 250 g
Item No. 30063-25
1
Caustic soda solution, 1.0 m, 1000 ml
Item No. 48329-70
1
Phenolphthalein, 0,5% soution in ethanol, 100 ml
Item No. 31715-10
1
Activated carbon, granular 500 g
Item No. 30011-50
1
Water, distilled 5 l
Item No. 31246-81
1

Name
Filename
Filesize
Filetyp
(en) Experiment guide
p3040801e .pdf
Filesize 0.46 Mb
pdf
Nach oben

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