esters

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  • Created by: emma plow
  • Created on: 08-04-13 19:20
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  • esters
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    • fats and oils
      • esters of glycerol and fatty acids
        • base hydrolysis
          • reflux ester with dilute alkali
            • carboxylate ion and alcohol
          • soap (SODIUM SALT)
            • add hcl
              • fatty acid
            • sodium salt dissocialtes: Na+ and RCOO-
              • RCOO- has two distinct ends: non polar hydrocarbon chain mixae with grease , COO- mixes with water
    • can be hydrolysed to form alcohols
      • acid hydrolysis
        • reflux ester with dilute acid
          • acid and alcohol
        • reversible: use lots of water to push equilibrium to the right
      • base hydrolysis
        • reflux ester with dilute alkali
          • carboxylate ion and alcohol
        • soap (SODIUM SALT)
          • add hcl
            • fatty acid
          • sodium salt dissocialtes: Na+ and RCOO-
            • RCOO- has two distinct ends: non polar hydrocarbon chain mixae with grease , COO- mixes with water
    • biodiesel
      • a mixture of methyl esters of fatty acids
      • veg oils + methanol with a KOH catalyst
        • a mixture of methyl esters of fatty acids

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