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The Microscale Synthesis of Azo Dyes

In this microscale chemistry experiment, from the Royal Society of Chemistry, students react aminobenzene with sodium nitrate in the presence of acid. The orange red azo-dye produced is 1-phenylazo-2-napthol. The resource is set out as teachers' notes followed by the students' page which presents the task to be...
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2000 - 2009

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The Microscale Synthesis of Indigo Dye

In this microscale chemistry experiment, from the Royal Society of Chemistry, 2-ntrobenzenealdehyde undergoes a condensation reaction with propanone in the presence of sodium hydroxide. The product is indigo dye. The resource is set out as teachers' notes followed by the students' page which presents the task to...
Publication date:
2000 - 2009

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The Preparation of Ethyl Benzoate

In this microscale chemistry experiment, from the Royal Society of Chemistry, benzoic acid is warmed with ethanol in a plastic pipette, the ester ethylbenzoate, is identified by smell. The resource is set out as teachers' notes followed by the students' page which presents the task to be investigated. A list of...
Publication date:
2000 - 2009

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The Treatment of Oil Spills

In this microscale chemistry experiment, from the Royal Society of Chemistry, students investigate cleaning up and oil spill using soil-moist hydrocarbon polymer. The polymer forms a rubbery solid on contact with hydrocarbons. The resource is set out as teachers' notes followed by the students' page which presents...
Publication date:
2000 - 2009

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Detecting Starch in Food

In this microscale chemistry experiment, from the Royal Society of Chemistry, students test for starch in food by generating iodine in a reaction between potassium iodide and bleach. The reactions take place on a clear plastic sheet over a worksheet. The resource is set out as teachers' notes followed by the...
Publication date:
2000 - 2009

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Separating a Sand and Salt Mixture

In this classic experiment, from the Royal Society of Chemistry, students use physical processes to separate a mixture of sand and salt. The soluble salt dissolves and so the mixture can be filtered, leaving the sand in the filter paper. The resource is set out as teachers' notes followed by the students' page...
Publication date:
2000 - 2009

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Viscosity

In this classic experiment, from the Royal Society of Chemistry, students investigate the viscosity of liquids. Different liquids are sealed in tubes with a small air bubble, inverting the tube and timing the rising air bubble allows students to compare viscosity. The resource is set out as teachers' notes...
Publication date:
2000 - 2009

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Rate of Evaporation

In this classic experiment, from the Royal Society of Chemistry, students investigate factors affecting evaporation. Using propanone on microscope slides, students change the conditions and time how long it takes for the propanone to evaporate. An explanation of a teacher demonstration using data logging apparatus is...
Publication date:
2000 - 2009

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Chromatography of Leaves

In this classic experiment, from the Royal Society of chemistry, students use propanone to separate the pigments in a leaf. Chopping up the leaves, and grinding them up with propanone releases the pigments. Propanone is also the solvent used to separate the pigments. The resource is set out as teachers' notes followed...
Publication date:
2000 - 2009

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The Energetics of Freezing

In this classic experiment, from the Royal Society of Chemistry, students measure the exothermic nature of the freezing process. Students melt sodium thiosulphate and then measure the temperature change as it cools and freezes. The resource is set out as teachers' notes followed by the students' page which...
Publication date:
2000 - 2009

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