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Two ideas for making holders for flame test wires. Uses straight forward techniques in glass working. 
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Clear advice and instructions on using a Bunsen burner to heat materials in test tubes.
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Alcohol is added to a series of beakers or crystallizing dishes containing metal salts and boric acid. The vapour is ignited and coloured flames are observed.
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Clear instructions and advice on how to safely heat flammable materials in test tubes.
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Safety precautions for practical food testing activities for carbohydrates, lipids and proteins.
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How to make your own safe version of this popular device used to demonstrate standing waves using gas flames.
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Health and safety advice for practical food testing, mainly proteins,
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Although both aldehydes and ketones contain the carbonyl functional group (-C=O), only aldehydes (or reducing sugars) give a positive ‘silver mirror’ test result with Tollen’s reagent. This small-scal.. more
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Although both aldehydes and ketones contain the carbonyl functional group (-C=O), only aldehydes give a positive test (formation of an orange to brick-red precipitate of copper(I) oxide) with Fehling’.. more
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This edition includes notes on a career structure for technicians, and tips on making a test-tube rack and sealing a syringe.
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