Steam distillation
1. Pulverize raw materials into coarsely powdered
2. Place 25 g. of raw materials into a glass steam distillatory 500 ml. (B)
3. Add purified water about 220-250 ml. into a round bottom flask 500 ml. (A) 4. Boil the water until the volume of collected oil dose not increase
5. Collect the condensed water and oil in separatory funnel
6. Wait until oil and water separated completely
7. Discard the water and collect the oil from separatory funnel
8. Calculate the percentage yield of oil