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This important procedure illustrates the conversion of saturated hydrocarbons, which are used for fuels, into the more chemically useful unsaturated hydrocarbons, used in making plastics.
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Testing for organic functional groups: unsaturation or double bonds
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Risk assessment guidance for cyclohexene, dipentene (limonene), ethene (ethylene), ethyne (acetylene), hex-1-ene, oct-1-ene.
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This guide describes a method of finding the iodine number for fats and oils using bromine that does not require a fume cupboard and can therefore be used as a class activity.
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This important procedure illustrates the conversion of saturated hydrocarbons, which are used for fuels, into the more chemically useful unsaturated hydrocarbons, used in making plastics. The alkenes .. more
words matched: unsaturated

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Includes disulfur dichloride (sulphur monochloride) and thionyl chloride.
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The traditional procedure to make soap is hazardous because it requires heating quite concentrated sodium hydroxide solution, typically about 5 M (CORROSIVE) with the oil or fat.This guide covers two .. more
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This document describes how to safely carry out unsaturation tests using bromine solution. There is guidance on minimising the release of toxic gas, and the intense and sometimes unpleasant odour of s.. more
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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
words matched: unsaturated

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A summary of queries to CLEAPSS concerning suggested practical activities which either did not work or were unduly hazardous. Ways around these problems are either included within this document or in .. more
words matched: unsaturated

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