The Isolation of the natural product trans-cinnamaldehyde from Cinnamon bark
This experiment aims at separating cinnamaldehyde from the cinnamon bark. A mixture of volatile and non-volatile elements is separated through the steam distillation method with temperature being below 100 oC. Moreover, the method is used to extract essential oils. The cinnamaldehyde will be conveyed up with the distillate, observed as an emulsion on the condensed vapor. It will turn milky on cooling. Methylene chloride will be sued to obtain it from the distillate. It will then be evaporated leaving behind the pure compound.
Chemical Formula: C9H8O
Molar mass: 132.16g/mol
Appearance: Yellow oil
Density: 1.0497 g/ml
Boiling point: 248 oC
Solubility in water: Slightly Soluble
Vaporization: (l) (g)
Condensation: (g) (l)
Extraction: (l) + (l)+ H2O(l) + Na2SO4(s) (s) +Na2SO4ˑ10H¬2O(s) + CH2Cl2(g)
Poulos, Zacary J. A Laboratory Manual for the Health Science Major Organic Chemistry I. MCPHS University-Boston: Hayden McNeil, Fall 2015. 33-41. Print.
List of changes:
Sodium sulfate was supposed to be used as a drying …show more content…
This is because the sum of the individual vapor pressures of the liquids form the vapor pressure of the mixture. This forms that basis of steam distillation. Having a higher vapor pressure, the mixture will have a lower boiling point than that of individual components of the mixture. In separating insoluble liquid natural products, water forms one of the components. This reduces the boiling point of the mixture thereby protecting the product from decomposition by high temperature. Obtaining eugenol from clove leaves involves distillation too. In this case, the products are steam, which is volatile and the