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quote:The query strikes me as being a bit strange. I assume that, by"carrier", he means the basic material used to dilute the concentratedperfume for use? (I'm puzzled by the use of the word "element", asobviously alcohol isn't an element in the strict sense of the word.)As far as I know, the main reasons for the almost universal use ofethanol are that it's relatively nontoxic; most perfume ingredients aresoluble in it; and it has a fairly neutral but not unpleasant smellitself. Water can't be used because most perfume ingredients are insoluble in it(although it's sometimes used alongside alcohol in emulsions.) The other alcohol which is sometimes used as a base is isopropanol,which has the advantage that it's not subject to Customs & Excise duty,so is more readily available and cheaper than ethanol (unfortunately,it's also very slightly more toxic than ethanol, and also has a ratherunpleasant smell (it's used in antiseptic swabs, so is usuallyassociated by most people with getting injections!)) The only other materials which I've come across being used occasionallyas a perfume base are various vegetable oils (olive, grapeseed, jojoba,etc.) - massage oils are the obvious example. The trouble with these,however, is that they suppress the evaporation of the perfumeingredients, and so reduce the intensity of the fragrance. Hope this is helpful. If I'm barking up the wrong tree, feel free to getback to me.