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Guidance on how to prepare (and use) of Fehling's solutions A and B.
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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’..
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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..
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Guidance on how to prepare Sandell's solution. This reagent may be used to test for aldehydes and is a safer alternative to Fehling's for testing for reducing sugars.
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This edition includes notes on the Special Waste regulations (1996). a defacto ban on α-toluidine, the wonders of octagonal-shaped benches in the lab, using Fehling's solution, and using Sordaria for ..
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Brief risk assessment guidance and experimental notes for a range of activities involving copper metal, copper(I) oxide, copper(II) oxide, copper carbonate and copper(II) sulfide (Hazcard 26).
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Risk assessment guidance for sodium hydroxide, soda lime and Fehling's Solution.
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Guidance on how to prepare Benedict’s qualitative solution. This is used to qualitatively test for reducing sugars e.g. glucose, via a colour change.
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Using copper metal, copper oxides, sulfate (VI), chloride, nitrate(V) and carbonate safely in practical work
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Using sodium hydroxide solution safely in practical work. Includes soda lime and potassium hydroxide
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