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The additional negative ions test tube reactions for nitrate(III), nitrate(V), sulfate(IV), phosphate and carboxylates (methanoate and ethanoate).
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Brief risk assessment guidance and experimental notes for a range of practical activities involving silver nitrate(V) and its solutions (Hazcard 87).
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Common anions are tested on a plastic covered worksheet, for quick easy disposal. Using solutions with minimum concentrations allows closer observations and initiates talking points. Students can phot.. more
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The positive ions aluminium (Al3+), potassium (K+), lead(II) (Pb2+) and ammonia (NH4+) can be tested for with simple test tube reactions. These tests are more specific than precipitation reactions wit.. more
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Brief risk assessment guidance and experimental notes for a range of activities involving potassium nitrate(V) and sodium nitrate(V) salts (Hazcard 82).
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Guidance on how to prepare lead(II) nitrate(V).
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Guidance on how to prepare mercury(II) chloride and dimercury(I) nitrate(V) solutions.
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Qualitative analysis is included in most science and chemistry courses across the 11-19 age range. This guide gives a summary/overview of the currently available CLEAPSS resources that provide detaile.. more
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Risk assessment guidance on these salts. Includes solutions of copper(II) ethanoate and copper(II) nitrate(V).
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Testing for negative ions - nitrate(III) and nitrate(V)
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