Ambergris, once commonly used as a fixative in perfumery, is produced in the digestive system of what?
Ambergris Ambergris Ambergris ( or , , ), "ambergrease", or "grey amber", is a solid, waxy, flammable substance of a dull grey or blackish colour produced in the digestive system of sperm whales. Freshly produced ambergris has a marine, fecal odor. However, it acquires a sweet, earthy scent as it ages, commonly likened to the fragrance of rubbing alcohol without the vaporous chemical astringency. Ambergris used to be very highly valued by perfumers as a fixative that allowed the scent to last much longer, but it has been replaced by synthetic ambroxan. Dogs are known to be attracted to the smell
Fixative (drawing) should only be used in a well ventilated area. Such fumes may also cause irritation to the eyes. Hydrocarbon contents are also flammable and should not be placed near an open flame or any incandescent sources. Artwork media requiring fixative include drawings done in pencil, charcoal, and pastel. An artist will often fix layers of a work in progress, in order to easily add further layers. Such a technique requires a workable fixative. Fixative is most commonly available in aerosol sprays. Fixative can also come in a liquid form that can be used from the bottle via a manual spray