Dichlorodiphenyldichloroethylene

Dichlorodiphenyldichloroethylene (DDE) is a chemical compound formed by the loss of hydrogen chloride (dehydrohalogenation) from DDT, of which it is one of the more common breakdown products. Due to DDT’s massive prevalence in society and agriculture during the mid 20th century, DDT and DDE are still widely seen in animal tissue samples. DDE is particularly dangerous because it is fat-soluble like other organochlorines, thus it is rarely excreted from the body and concentrations tend to increase throughout life. The major exception is the excretion of DDE in breast milk, which delivers a substantial portion of the mother's DDE burden to the young animal or child. Along with accumulation over an organism's life, this stability leads to bioaccumulation in the environment which amplifies DDE’s negative effects.

Synthesis

DDE is created by dehydrohalogenation of DDT. The loss of HCl results in a double bond on the central (previously quaternary) carbon atoms.

Toxicity

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This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Dichlorodiphenyldichloroethylene

DDE

DDE may refer to:

  • D.D.E., a Norwegian rock band
  • Delay differential equation, a type of differential equation
  • Deep-dose equivalent, a measure of radiation absorbed by the body
  • Dichlorodiphenyldichloroethylene, a chemical that results from the breakdown of DDT
  • Doctrine of double effect, ethical criteria to evaluate the permissibility of acting when one's otherwise legitimate act may also cause an effect one would normally be obliged to avoid
  • Dwight D. Eisenhower, the 34th President of the United States
  • Dynamic Data Exchange, a Microsoft Windows inter-application data communication protocol
  • Escort destroyer, a US Navy classification for destroyers used between 1945 and 1962
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    This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/DDE

    USS Robert A. Owens (DD-827)

    USS Robert A. Owens (DD/DDK/DDE-827) was a Gearing-class destroyer of the United States Navy, named for USMC Sergeant Robert A. Owens (1920–1943), who was awarded both the Navy Cross and Medal of Honor posthumously for his heroic actions in the Battle of Empress Augusta Bay.

    Robert A. Owens was laid down on 29 October 1945 by the Bath Iron Works Corp., Bath, Maine; launched on 15 July 1946; sponsored by Miss Patricia Hannegan; reclassified DDK-827 on 28 January 1948; and commissioned at Boston on 5 November 1949, Commander Rexford V. Wheeler, Jr., in command.

    Service history

    1950–1959

    Following shakedown in February 1950, Robert A. Owens, one of the first hunter-killer destroyers so designated, was reclassified DDE-827 on 4 March 1950. She operated in the western Atlantic and the Caribbean (during which time she sank U-2513 west of Key West, Florida during rocket tests on 7 October 1951) and in late 1952 when she deployed to the Mediterranean. From that time into the 1960s, she operated with the 6th Fleet for six months out of every eighteen. During the remaining twelve months, she conducted anti-submarine patrols off the Atlantic coast and in the Caribbean. In the fall of 1957 she added the North Sea to her operational area as she joined in NATO exercises.

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    This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/USS_Robert_A._Owens_(DD-827)

    Podcasts:

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    D.D.E 15 år live - jubileumsutg.

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    No e D.D.E. jul igjen

    Released 1999

    OHWÆÆÆÆH!!!

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    Det går likar no

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    det é D.D.E.

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    Rai 2

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    Rai-Rai

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