Middle note, perfume mixtures

Apart from the materials already mentioned the top note contains a simple mixture of bergamot and orange. The middle note is dominated by a traditional jasmin base, with muguet (hydroxycitronellal 10%), and rose. At the heart of the perfume is the classical chypre accord between vetiveryl acetate (10%), methyl ionone, oakmoss, aldehyde C14, coumarin, sandalwood, patchouli, musk ketone, and amber. The amber note can be reproduced by the simple but effective combination of labdanum, olibanum, and vanilla. Small amounts of other animalic notes such as civet may also be used. 

Perfumes are usually mixtures of notes, fragrances with similar aromas but different volatilities (the ease with which a substemce is converted into a gas). The most volatile is called the top note. It s what you initially smell. The middle note is the most noticeable smell, while the end note fragrances are responsible for the lingering odor of the perfume. Figure 17-5 shows the chemical structure of several of the fragrances commonly used in perfumes. 

Perfumes are mixtures of molecules, generally with molecular mass below 300, of varying volatilities. Their top note is made of volatile substances with instant impact. Once this disappears, the middle note is longer lived, while the base note which may linger for days or weeks, and may make up 50% of the perfume, are deep odors that may not be smelt for some time. The fixative is a molecule with a deep odor that has a low volatility and which helps to reduce evaporation of the more... 

Perfumes are complex mixtures of substances having dissimilar chemical properties. Considering one of the most important properties, from the perfumer viewpoint, the volatility, there are a large range of materials, classified into three classes Top notes or initial fragrance impression, body notes or middle... 

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