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Guidance on how to prepare potassium dichromate(VI) and sodium dichromate(VI) solutions.
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Describes two simple microscale practical activities, one a demo, the other for class use, for illustrating the electrolytic separation of copper and chromate ions. Copper chromate is made, in situ, b.. more
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Risk assessment guidance for potassium and sodium dichromates(VI).
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Risk assessment guidance for Potassium chromate(VI).
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The structures of alcohols influence their chemical reactivity. This small-scale activity provides a quick introduction to the effect of oxidising agents on primary, secondary and tertiary alcohols. T.. more
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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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In this activity, a primary alcohol (ethanol) is oxidised to an aldehyde (ethanal) using an acidified dichromate(VI) solution. After collection by distillation, the organic product can be tested to co.. more
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Using chromium metal, chromium salts, chrome alum, chromates and dichromates, safely in practical work.
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Using various sodium and potassium salts safely in practical work. Includes chlorides, bromides, iodides, sodium sulfate(VI), sodium hydrogensulfate(VI) (bisulphate), and sodium nitrate(V).
words matched: dichromate, potassium

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In this activity, a primary alcohol (ethanol) is oxidised to a carboxylic acid (ethanoic acid) using an acidified dichromate(VI) solution. Important techniques are involved including heating under ref.. more
words matched: dichromate, potassium

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