Product details

Reaction kinetics with spectrophotometry

Reaction kinetics with spectrophotometry

Item no.: P3070601
Available from June 2019

Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
  • Description
  • Scope of Supply
  • Accessories

Principle

The organic dye crystal violet is decolorised in an alkaline medium. This reaction takes place according to a velocity-time law, hence it is a reaction of the first order.
Using the integrated software, the change in concentration of the dye can be traced by measuring the extinction at the wavelength of the absorption maximum. The computer program plots the kinetic data in graphical form.

Benefits

  • Modern, easy-to-use photospectrometer
  • Simple evaluation by integrated software

Tasks

The order of reaction during decolorisation of crystal violet is to be determined.

What you can learn about

  • Reaction kinetics
  • First order reaction
  • Photometry
  • Reaction rate

Necessary accessories

  • Precision balance 620g/0.001g

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