Colour by Design - Oils and fats

HideShow resource information

Examples of esters

  • Oils and fats have the same basic structure except oils are liquids at room temperature and fats are solids at room temperature
  • Usually esters formed by propane-1,2,3-ol (glycerol) reacting with a long-chain carboxylic acid
  • Glycerol has 3 alcohol groups so reacts with 3 molecules of the carboxylic acid
  • The product is called a triester
  • Gylcerol can react with 3 different carboxylic acid molecules

Fats and fatty acids

  • The carboxylic acids in fats and oils usually have unbranched hydrocarbon chains
  • They are sometimes called fatty acids
  • Saturated - no double bonds
  • Unsaturated - double bonds
  • Saturated fats tend to cause blockage of blood vessels and so may lead to heart disease
  • Polyunsaturated fats are healthier - the more double bonds, the better
  • An oil or fat can be indentified by breaking it down into glycerol and its


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Acids, bases and salts resources »