All Separation articles – Page 5

Experiment

Distribution of iodine between two immiscible solvents

In association with Nuffield Foundation

Use this class experiment or demonstration to create an equilibrium distribution using iodine in two immiscible solvents. Includes kit list and safety instructions.

Experiment

Preparing a soluble salt by neutralisation

In association with Nuffield Foundation

In this practical, students react alkaline ammonia with sulfuric acid to form the soluble salt ammonium sulfate. Includes kit list and safety instructions.

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Separating Mixtures

Covers methods of separation through to separating mixtures of minerals on the basis of their different physical properties.

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Faces of Chemistry – Packaging gases

Discover how scientists from BOC remove gases from the air and use them in food packaging and processing.

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‘Recycle shipwrecked cargo’ demands group

Recycle, reuse and rediscover with this shipwreck themed experiment. Includes kit list and safety instructions. 

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Pigments

Discover how we can extract dye materials from plants in this explorative practical, includes kit list and safety instructions.

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Is the secretary guilty? | 14–16 years

In this practical, your learners become chemical detectives by carrying out an investigation using separation techniques

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Chewing Gum: Laboratory Exercise

This laboratory-based resource consists of an investigation into the composition of flavourings chemicals present in chewing gum.

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On This Day - Mar 05 : Emmett Culligan was born

He invented the Culligan water softener system, which made water softening available to home users. This system uses minerals called zeolites, which filter calcium (Ca), magnesium (Mg), and other metal cations from hard water.