Experiments of the month

Easy setup, impressive results, sustainable learning success – that offer our natural science experiments. Today we would like to present two selected experiments of our optics and organic chemistry range.

Have fun while experimenting!

OPTICS

D5.6.1.2_A Dispersion of light into colours upon passage through a prism

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The dispersion of white light into different colours has already been examined by NEWTON. Each student is this observation known by e.g. a rainbow.

The definition of three primary colours resulting from the spectrum allows afterwards also the understanding of origin of colours by adding colours, e.g. on a monitor.

In the present experiment, the white light of a bulb is dispersed with a flint glass prism and the spectrum imaged on a screen. By using elements on an optical bench for demonstration, which can also be used for student experiments, it is possible to let students work parallel on this topic, as they easily recognize these optical devices.

The appropriate experiment instruction can be downloaded here.

ORGANIC CHEMISTRY

C2.3.2.1 Fractionated petroleum distillation with a bubble tray column

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Crude oil is a fossil raw material, primarily used as an energy source and basic material for the chemical industry. As crude oil is a natural substance mixture which consists of various hydrocarbons with different properties, the fractionation of the individual components by distillation is essential prior to further use.

In chemical engineering, crude oil is distilled in bubble tray columns. This process is simulated in experiment C2.3.2.1. The system is fitted with two bubble trays so multiple fractions can be extracted simultaneously.

The appropriate experiment instruction can be downloaded here.