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The application of the perfume, aldehyde have?

times   2016-05-31

  A lot of people know, the production of perfume composition, more or less will there is a certain composition of chemical additives. Ok, 20 dollars to ask any entry soon control what is aldehyde fragrance perfume, you're likely to hear the following answer: "they are a kind of synthetic material, for the first time applied to Chanel No. 5. It is the use of aldehyde fragrance makes 5 the future model of synthetic materials in the perfume and ancestor. The flavor of aldehyde similar champagne, there is a feeling of active boiling bubbles, so they can join often give a perfume wings" - this is their content in the induction phase was told over and over again. On the other hand, if you ask is a uniting the hardcore perfume control for a long time, what you hear will probably answer "aldehydes have a waxy, citrus and roses, like the candle was blown out of that a moment send out" (since Luca Turin in the Emperor of Scent "after using this analogy, this statement has a considerable influence). So which side is right? In fact, "aldehyde sweet" face is much more complex than both.

  Aldehydes (ketones) is a kind of contained carbonyl groups (C = O) of organic compounds. In carbonyl functional groups, retained the two carbon atoms bond, respectively connected hydrogen, alkyl or aromatic substituent. If the two is at least one hydrogen atom in the base, then the compound belongs to aldehydes. If are not two substituents hydrogen atoms, then belongs to ketones. Most of aldehydes and ketones has a strong smell. The flavor of the ketones are generally more pleasant, they not only is a frequent visitor to the perfume (such as musk perfume of musk ketone (muscone)), and is often used as edible flavor. Aldehydes taste is varied, including low molecular weight aldehydes most smells are not very pleasant (some) as corrupt fruit. But some of the high molecular weight aldehydes and aromatic aldehyde smells is quite good, so also is used in perfumes.

  Acetaldehyde is one of the shortest aldehyde in the carbon chain, is also one of the earliest discovered aldehyde (first discovered in 1774 by Carl Wilhelm Scheele). But until 60 years after its concrete structure has been thoroughly understand - Justus von Liebig invented the synthesis methods of acetaldehyde by ethanol, and officially named this kind of compound aldehyde.

The most widely used in perfume aldehyde has the following kinds:

C7 (heptanal, heptanal) : in sage naturally, with the green herb

C8 (octyl aldehyde, octanal) : similar to the orange

C9 (nonyl aldehyde, nonanal) : rose fragrance

C10 (decanal, decanal) : a sense of powder, reminiscent of the orange peel. Citral (citral) is a kind of form is more complex than decanal 10 carbon aldehyde, smell the smell of lemon.

C11 (11 aldehyde, undecanal) : "clean" aldehyde sweet, natural exist in coriander leaf essential oil. 10-11 unsaturated olefinic aldehydes (C11 undecen - 1 - al) has used in perfumes.

C12 (bay aldehyde, lauryl aldehyde) : can let a person think of lilac and the smell of violets

C13: smells like paraffin and have a smell of grapefruit

C14: Mitsouko in the famous "peach skin", not aldehyde precisely C14, it is a called undecane acid lactone (gamma undecalactone, commonly known as "peach aldehyde") of the lactone (lactone)

Such compounds usually in commercial name (unlike the nomenclature of science in chemical) registered patent, so they face even for perfume lovers has always been a cloud cover fog cover, although they are often mentioned.