Steam Distillation of an Essential Oil Flashcards
Objective
- isolate clove oil from cloves the steam disitillation and extraction
- characterize reaction with bromine, potassium permanganate, and iron(III) chloride
What are the functional groups of Eugenol and Eugenol Acetate?
phenylpropanoids
Eugenol & Eugenol Acetate are related in structure to the common amino acids phenylalanine and tryosine, and they belong to a class of compounds known as ________.
Phenylpropanoids
These compounds are related due to their _____ skeleton?
Phenyl-propane skeleton
Steam distillation is used in what two aspects?
- isolating liquids form natural sources
2. removing a reaction product product from a tarry reaction mixture
Liquids that are not mutually soluble (immscible) can be distilled through what type of distillation?
steam distillation
A mixture of immiscible liquids will boil at (higher/lower) temperatures than the boiling points of the separate components as pure compounds.
lower
What does the bromine test, test for? What is the color change?
- double bond
- orange to pale yellow or red to colorless
What does the potassium permanganate test for? What is the color change?
- double bond
- purple to mud brown
What does Iron III Chloride test for? What is the color change?
- phenol group
- yellow to blues, green, red, or purple
Why are mole fractiona not included in Dalton’s Law?
because each liquid vaporizes independently of each other
When distilling two immiscible liquids the composition of the vapor is _____ of the amount of either component present so the vapor composition must remain ____ during distillation
independent
constant
What is the drying agent of how does it work?
- is an insoluble anhydrous inorganic salt that acquires water of hydration when exposed to moist air or a wet solution
- used to remove water a wet organic layer obtained after an extraction
What drying agent did we use in lab?
sodium sulfate
