Practicals

Cards (4)

  • Preparation of organic liquid (Alcohol to haloalkane)
    1. Seperation of product
    2. Removal of impurities
    3. Drying product
    4. Distillation
  • Synthesis techniques
    Heating under reflux
    Vacuum filtration
    Recrystilisation
    Melting point
    TLC
  • Recrystallisation
    1. Dissolve the impure solid in minimum amount of hot solvent
    2. Whilst hot filter (gravity filtration) Bunchner funnel and flask should be heated to reduce crystallisation
    3. Leave filtrate to cool
    4. Filter by vacuum filtration, leave in warm oven to dry
  • Rf=Rf=Distancetravelledbyspot/DistancetravelledbysolventDistance travelled by spot / Distance travelled by solvent