Ethyl Corporation

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Ethyl Corporation
Sign advertising Ethyl additive, on an antique gasoline pump in the USA

Ethyl Corporation is a fuel additive company headquartered in Richmond, Virginia in the United States. The company is a distributor of fuel additives. Among other products, Ethyl Corporation distributes tetraethyllead, an additive used to make leaded gasoline.


Founded in 1923,[3][4] Ethyl Corp was formed by General Motors and Standard Oil of New Jersey (Esso). General Motors had the "use patent" for tetraethyllead (TEL) as an antiknock, based on the work of Thomas Midgley, Jr., Charles Kettering, and later Charles Allen Thomas,[5]:340-41 and Esso had the patent for the manufacture of TEL. Since the patents affected the marketing of TEL, General Motors and ESSO formed Ethyl Corp; each parent company had a 50% stake in the new corporation. Since neither company had chemical plant experience, they hired Dupont to operate the manufacturing facilities. After patents ran out, Dupont started manufacture of TEL on their own, and Ethyl started running its own operations.

In 1962, Albemarle Paper Manufacturing Company, in Richmond, borrowed $200 million and purchased Ethyl Corporation (Delaware), a corporation 13 times its size. Albemarle then changed its name to Ethyl Corporation. It is believed that General Motors thought to divest itself of "Ethyl Corporation," owing to concern about liabilities of TEL. The 1962 transaction was the largest leveraged buyout until that time.

During the 1970s and 1980s, the Ethyl Corporation expanded and diversified in response to the gradual decline of the market for TEL, as the automotive industry shifted to unleaded gasoline. In the late 1980s, Ethyl began to spin off a number of divisions. The aluminum, plastics, and energy units became Tredegar Corporation in 1989. In 1993, it spun off its life insurance company, First Colony Life, and then in 1994, the specialty chemicals business was spun off as an independent, publicly traded company named Albemarle Corporation.

In 2004, Ethyl Corporation became a subsidiary of NewMarket Corporation (NYSENEU).


Tetraethyllead has been recognized as a contributor to soil, air and water lead pollution, and is toxic to humans. While leaded gasoline made engines more efficient, lead pollution has increased by over 625 times previous levels in the past century due partly to pollution by leaded fuel. Ethyl Corporation historically denied that tetraethyllead poses significant public health risks in excess of those associated with gasoline itself.

Tetraethyllead was supplied for blending with raw gasoline in the form of "Ethyl Fluid", which blended tetraethyllead with the lead scavengers 1,2-dibromoethane and 1,2-dichloroethane. Ethyl fluid contained a dye which would distinguish treated gasoline from untreated gasoline and discourage the diversion of gasoline for other purposes, such as cleaning.


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  3. ^ Bill Bryson (2003). A Short History of Nearly Everything. New York: Broadway Books. ISBN 0-7679-0817-1.
  4. ^ F. R. Banks (1978). I Kept No Diary. ISBN 9780950454399.
  5. ^ Ralph Landau, "Charles Allen Thomas," Memorial Tributes, vol. 2, National Academy of Engineering

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