10 Questions
What are volatile oils and what are their physical characteristics?
Volatile oils are odoriferous liquid of complex mixture that vary in chemical composition. They are colorless, lipid soluble, have characteristic odor, high refractive index, and are lighter than water with some exceptions.
How do volatile oils change when exposed to air at ordinary temperature?
Volatile oils evaporate and change to gas when exposed to air at ordinary temperature, distributing their odor everywhere.
What are the sources of volatile oils?
The sources of volatile oils include plant sources, such as oil of citrus and ginger oil, and animal sources, such as musk oil, cevits scent, and ambergris.
What are some exceptions to the characteristic odor of volatile oils?
Oil of wintergreen, oil of almond, and oil of mustard are exceptions to the characteristic odor of volatile oils, as they are produced by enzymatic hydrolysis of glucoside.
What is musk oil and how is it obtained?
Musk oil is the dried secretion of musk deer, obtained from the sexual organs of male deer for reproduction. It is commercially used in Asia.
What is the color of most volatile oils?
Colorless
What causes the darkening of volatile oils on exposure to oxygen and light?
Hydrolysis (oxidation) or resinification
What is the physical state of volatile oils when exposed to air at ordinary temperature?
They evaporate and change to gas
What is the main characteristic of volatile oils in terms of solubility?
Lipid soluble and miscible with organic solvent
Which type of volatile oil has exceptions to its characteristic odor?
Oil of wintergreen, oil of almond & oil of mustard
Explore the physical characteristics and chemical composition of volatile oils. Learn about their odoriferous nature and their behavior when exposed to air at ordinary temperatures.
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