Ambergris

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Ambergris (Ambra grisea, Ambre gris, ambergrease, or grey amber) is a solid, waxy, flammable substance of a dull grey or blackish color, with the shades being variegated like marble. It possesses a peculiar sweet, earthy odor similar to isopropyl alcohol. Now largely replaced by synthetics, it is occasionally still used as a fixative in perfumery.

Ambergris was also molded, dried, decorated and worn as jewellery, particularly during the Renaissance. It was often formed into beads.

Contents 1 Source 2 Physical properties 3 Replacement compounds and economics 4 References 5 External links

[edit] Source

Ambergris occurs as a biliary secretion of the intestines of the sperm whale, and can be found floating upon the sea, or in the sand near the coast. Because giant squids' beaks have been found embedded within lumps of ambergris, scientists have theorized that the whale's intestine produces the substance as a means of facilitating the passage of hard, sharp objects that the whale might have inadvertently eaten. Ambergris can be found in the Atlantic Ocean; on the coasts of Brazil and Madagascar; also on the coast of Africa, of the East Indies, mainland China, Japan, India, Australia, New Zealand and the Molucca islands. However, most commercially collected ambergris came from the Bahama Islands, Providence Island, etc. It is also sometimes found in the abdomens of whales.

[edit] Physical properties

Ambergris is found in lumps of various shapes and sizes, weighing from ½ oz (14 g) to 100 or more pounds (45.36 or more kg). When initially expelled by or removed from the whale, the fatty precursor of ambergris is pale white in color (sometimes streaked with black), soft in consistency, with a strong fecal smell. Following months to years of photo-degradation and oxidation in the ocean, this precursor gradually hardens, developing a dark gray or black color, a crusty and waxy texture, and a peculiar odor that is at once sweet, earthy, marine, and animalic. Its smell has been described by many as a vastly richer and smoother version of isopropanol without its stinging harshness.

In this developed condition, ambergris has a specific gravity ranging from 0.780 to 0.926. It melts at about 62 °C to a fatty, yellow resinous liquid; and at 100 °C it is volatilized into a white vapor. It is soluble in ether, and in volatile and fixed oils. Ambergris is relatively nonreactive to acid. White crystals of a substance called ambrein, which closely resembles cholesterol, can be separated from ambergris by heating raw ambergris in alcohol then allowing the resulting solution to cool.

[edit] Replacement compounds and economics

Historically, the primary commercial use of ambergris has been in fragrance chemistry, although it has also been used for medicinal and flavoring purposes. Ambergris has historically been important perfume odorant and is highly sought. However, it is difficult to get a consistent and reliable supply of high quality ambergris. Due to demand for ambergris and its high price, replacement compounds have been sought out by the fragrance industry and chemically synthesized. The most important of these is ambrox, which has largely taken its place and is the most widely used ambergris-replacement odorant in perfume manufacture. The oldest and most commercially significant synthesis of ambrox is from sclareol (primarily extracted from clary sage), although syntheses have been devised from a variety of other natural products, including cis-abienol and thujone. Procedures for the microbial production of ambrox have also been devised.^{[citation needed]}

Raw ambergris fetches approximately US$10 per gram (as of 2006), with much higher prices possible for particularly high-quality samples.^[1][2] In the United States, importing, buying, or selling ambergris — including ambergris that has washed ashore — was considered a violation of the Marine Mammal Protection Act of 1972.^[3] However, in 2001 this ruling was overturned, and ambergris was deemed NOT a byproduct of the whaling industry, since the whale expels this substance naturally. There is now no prohibition in the buying and selling of ambergris in the United States. For more information contact U.S Fish & Wildlife – Import Enforcement – 650-876-9078

[edit] References

1. ^ NYTimes article
2. ^ BBC article
3. ^ MMPA

[edit] External links

• Please Let It Be Whale Vomit, Not Just Sea Junk
• University of Miami Ambergris FAQ
• Natural History Magazine Article: Floating Gold -- The Romance of Ambergris
• Ambergris - A Pathfinder and Annotated Bibliography
• On the chemistry and ethics of Ambergris
• Whale 'vomit' sparks cash bonanza

This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain.