Improve the Triangle

        The evaporation triangle commonly used to describe the composition of perfumes is the oldest and most accepted representation of a perfumes composition. Its simplicity is its strength, hence its adoption by almost every perfumer, perfume marketer and advertiser. It has helped a much wider audience understand that a perfume changes with time and is not a static form. However, its strength is also its weakness, because of over simplification, and this leads to a serious flaw if using it for more than the most basic of descriptions.

        I am frequently asked of a certain material "Is it a top note or a bottom note?". Well, there is rarely a simple answer, although a quick "top, middle, bottom" answer will avoid lengthy discussions. This is because some esters are extremely volatile and can usually be smelled only in the top note portion of a perfume (e.g. amyl acetate). Some materials like the Nitro Musks (e.g. Musk Ketone) have very little effect on the top note at normal concentrations and can be said to be almost exclusively bottom note materials. But by far the majority of materials used in perfumery affect more than a single stage of the evaporation. Benzyl Acetate is very present in the top note and lasts well into the middle note of many fragrances. Ambrettolide, a macrocyclic molecule with a soft animallic musky odor lasts for hundreds of hours on a smelling strip, but even at concentrations of less than 1 in 10,000 has an effect on the top note.

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        So how can we   improve upon this model of the simple triangle to visually demonstrate how a perfumes odor develops ?

        Try to redraw the triangle or use any other shapes, including 3d models if you like, to improve upon this model.

Now to demonstrate how your 'chart' works  Choose 30 materials from your kit or essential oils and place them on your new chart