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Testing for organic functional groups: unsaturation or double bonds
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Concentrated sulfuric(VI) acid reacts with solid samples of Group 1 halides (chloride, bromide or iodide) to form hydrogen halide gases and other products. The activity illustrates the behaviour of co.. more
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Brief risk assessment guidance and experimental notes for a range of practical activities involving hydrochloric acid, hydrobromic acid, hydriodic acid and Group 1 halide salts (Hazcards 47A, 47B, 47C.. more
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Risk assessment guidance for caesium chloride; lithium chloride; sodium bromide, chloride, iodide; potassium bromide, chloride, iodide; rubidium chloride.
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This is a COVID-19 supplement and should be read in conjunction with our main guide to non-specialist teachers using labs Guide PS082.As schools return in September 2020 we know of schools, where the .. more
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Describes the precautions and training needed when activities such as registration or non-science lessons have to take place in labs, and, in particular, when these are taken by non-science staff.
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Soap making is an ancient process, going back at least 4000 years. It is an example of saponification of an ester group, which is sometimes included in GCSE, A-level and BTEC courses. The conventional.. more
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Using magnesium and calcium safely in science practical activities.
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The dehydration of an alcohol to an alkene is commonly studied in post-16 courses.  The chemistry of alkenes is also required at GCSE. In this small-scale method, which can be carried out on the open .. 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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