Specification Point 4.42C (Paper 2C Only):
Know that esters are volatile compounds with distinctive smells and are used as food colourings and in perfumes
Properties of Esters
Different uses of esters
These properties of esters make them useful for food colourings and perfumes:
Volatility: Esters are very volatile as they only have weak attractive forces between their particles so can evaporate easily (readily change from a liquid to a gas).
Distinctive smell: Esters are chemicals with pleasant ‘fruity’ smells, e.g. pentyl butanoate smells of strawberries.
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Jamie got a First class degree in Chemistry from Oxford University before going on to teach chemistry full time as a professional tutor. He’s put together these handy revision notes to match the Edexcel IGCSE Chemistry specification so you can learn exactly what you need to know for your exams.
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