Thames & Kosmos Creative Cosmetics Lab handleiding
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Aroma Compounds
Where do the fragrances of foods, spices, perfumes,
and flowers come from? Their smells come from
chemical compounds called aroma compounds.
Aroma compounds are able to vaporize easily
enough that they can be transported through the
air to the smell, or olfactory, receptors in your
nose. Chemists call the ability of a liquid to
vaporize easily volatility.
In Experiment 2, you steeped the flower
or herb pieces in oil to extract these
aroma compounds. This is the same as
when you place tea leaves in hot water
to extract chemical compounds such as
caffeine out of the tea leaves.
You might have seen the
word extract used on
cosmetic products, such as
“contains green tea extract.”
Chemist use extraction as a way
to move a substance from one
liquid to another. The two liquids
used are immiscible, meaning
that they do not mix. Oil and
water is an example of two
immiscible liquids. The substance
that you want to extract travels
from the first liquid to the second
because it is more soluble,
meaning it dissolves easier in the
second liquid.
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Creative Cosmetics Lab |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10798 MB |
