Photo credits: ScenTree SAS
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General Presentation
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CAS N° : 64-17-5
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EINECS number : 200-578-6
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FEMA number : 2419
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FLAVIS number : 02.078
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JECFA number : 41
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Appearance : Colorless liquid
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Density : 0,789
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Volatility : NON TROUVE_N/A
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Price Range : €
Physico-chemical properties
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Molecular formula : C2H6O
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Molecular Weight : 46,07 g/mol
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Log P : -0,35
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Fusion Point : -114,1°C
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Boiling Point : 79°C
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Detection Threshold : Donnée indisponible.
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Optical rotation : Donnée indisponible
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Vapor pressure : Donnée indisponible
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Refractive Index @20°C : Donnée indisponible
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Acid Value : Donnée indisponible.
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Flash Point : 14°C
Uses
Uses in perfumery :
Ethanol is the most widely used solvent in fine fragrance. It is used, together with water, to dilute fine fragrance concentrates, for production and stability testing. Water accompanies alcohol in alcoholic perfumes, in accordance with the law giving a maximum alcohol dosage in fine fragrances.
When producing a perfume in the factory, it is important to allow it to macerate for at least two weeks in this solvent. This allows the perfume concentrate to spread and obtain the commercialized smell.
It is strongly recommended to avoid putting alcohol in a perfume concentrate, as well as in a functional base such as those for candles. The flame would then become too large.
Year of discovery :
Data not available.
Natural availability :
Ethanol can only be synthesized from natural products, by maceration of sugar beet or sugar cane for example. However, it cannot be extracted from a natural compound.
Isomerism :
Ethanol has no isomer commonly used in perfumery.
Synthesis precursor :
Ethanol is used for the synthesis of many compounds, perfumes or other fields. For example, the ethyl esters are all synthesized from Ethanol. Ethanol is also one of the sources of instabilities of raw materials in perfumes. It can indeed contribute to the formation of its own diethyl acetal (DEE) or aldehydes for example.
Synthesis route :
Ethanol can be produced in two ways: by hydration of ethylene or by fermentation of yeasts or cellulose. A hydration of ethylene consists in mixing it with water under a high pressure, in the presence of an acidic catalyst such as phosphoric acid, to shift the reaction equilibrium to obtain ethanol. The final reaction product contains 10 to 25% ethanol. This is the process used in perfumery. Fermentation of sugars (from sugar beet or sugar cane, for example) in the presence of yeasts such as Saccharomyces cerevisiae, are generally used for the preparation of alcoholic beverages.
Regulations & IFRA
Allergens :
This ingredient does not contain any allergen.
IFRA 51th :
This ingredient is not restricted for the 51th amendment
