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Concentrated sulfuric(VI) acid acts as both a dehydrating and oxidising agent with organic material such as carbohydrates. The carbon produced by dehydration is then oxidised to carbon dioxide and car.. more
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Sulfuric(VI) acid does not exhibit the usual properties of an acid unless it is dissolved in water. In this activity, the concentrated acid acts as a dehydrating agent, removing the water of crystalli.. more
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Sulfuric(VI) acid does not exhibit the usual properties of an acid unless it is dissolved in water. In this activity, the concentrated acid acts as an oxidising agent. Copper is oxidised to copper(II).. more
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A microscale activity which demonstrates a number of chemical reaction with ammonia. Because this is microscale, quantities of chemicals used are tiny,  making disposal and clearing up very easy.
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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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A quick and safe method for preparing hydrated copper sulfate crystals from copper(II) oxide and sulfuric acid. The activity involves important techniques such as heating with a water bath, filtration.. more
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Small scale 'disappearing cross' methods for investigating the effect of concentration on the rate of the sodium thiosulfate - acid reaction. Includes use of an alkaline 'stop-bath' to neutralise used.. more
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Includes amino acids, gibberellic acid; ascorbic acid, indol 3-ylethanoic acid; indol 3-ylbutanoic acid, and hormone rooting powders.
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This edition includes a report on problems with using rosin-based solder, alternative chemicals for anaesthetising Drosophila, and the introduction of the, then, new PUWER and COSHH regulations.
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Risk assessment information for 2-aminobenzoic acid, 4-aminobenzoic acid and 3-nitrobenzoic acid.
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