All Separation articles – Page 4

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    'Recycled shipwrecked cargo' demands group

    In Search of Solutions: As environmental scientists, use your knowledge to clean up a shipwreck involving Group 1 and 2 chemical elements. Linking to topics on sublimation, magnetism, filtration, evaporation and solubility.

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    Pigments

    In Search of Solutions: Chromatography is used to identify unique pigments extracted from various plant materials. Linking to topics on chromatography and extraction.

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    Is the secretary guilty?

    In Search of Solutions: Budding forensic scientists are tasked to determine glass contamination in sugar. Linking to topics on dissolving, filtration, evaporation, chemical changes and crystallisation.

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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.