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  • PBDEs
  • Polybrominated diphenyl ethers (PBDEs) are a class of brominated flame retardants , first produced commercially in the 1970s. (sourcewatch.org)
  • Polybrominated diphenyl ethers (PBDEs) are structurally similar to known human toxicants polybrominated biphenyls (PBBs), polychlorinated biphenyls (PCBs), dioxins and furans . (sourcewatch.org)
  • Polybrominated diphenyl ethers (PBDEs), a group of flame retardants, and perfluoroalkyl substances (PFASs) were analysed in serum samples of pregnant women from Denmark to provide information about their exposure and to study indications of common exposure pathways. (mendeley.com)
  • formula
  • In the IUPAC nomenclature system, ethers are named using the general formula "alkoxyalkane" , for example CH 3 -CH 2 -O-CH 3 is methoxyethane . (wikipedia.org)
  • 260--465.6 2 Claims ABSTRACT OF THE DISCLOSURE Substituted perfiuorovinyl ethers having the formula CFFCFO(OF ),,-CN where n is from 2 to 12, preferably 2 to 4. (google.com)
  • A novel process of this invention whereby compounds of the formula OF CFO(CF ),,COOM may be prepared is the pyrolysis under substantially anhydrous conditions of compounds of the formula 3,641,104 Patented Feb. 8, 1972 "ice DETAILED DESCRIPTION OF THE INVENTION The first step in preparing the novel perfiuorovinyl ethers of this invention follows the disclosure of U .8. (google.com)
  • luminiferous aether
  • In the late 19th century, physicists postulated that aether permeated all throughout space, providing a medium through which light could travel in a vacuum , but evidence for the presence of such a medium was not found in the Michelson-Morley experiment , and this result has been interpreted as meaning that no such luminiferous aether exists. (wikipedia.org)
  • flame retardants
  • Several classes of emerging contaminants with endocrine disruptive properties were detected in appreciable concentrations, including polybrominated diphenyl ether ( PBDE ) flame retardants, nonylphenols (NPs) detergent breakdown products and the antibacterial agent triclosan . (sourcewatch.org)
  • alkyl groups
  • Ethers can again be classified into two varieties: if the alkyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. (wikipedia.org)
  • Simple ethers are named by naming the alkyl groups in alphabetical order and adding the word 'ether' to the end. (angelo.edu)
  • ethanol
  • Getting a good yield of ether requires that ether be distilled out of the reaction mixture before it reverts to ethanol, taking advantage of Le Chatelier's principle . (wikipedia.org)
  • physicists
  • Michael Brooks lends credence to the story that Einstein's theory of relativity was a response to the alleged failure of the physicists Albert Michelson and Edward Morley to measure the ether drift (23 October, p 32) . (newscientist.com)
  • prophesy
  • wherefore Ether came forth in the days of Coriantumr, and began to prophesy unto the people, for he could not be b restrained because of the Spirit of the Lord which was in him. (lds.org)
  • Coriantumr
  • 18 Wherefore, it came to pass that in the first year that Ether dwelt in the cavity of a rock, there were many people who were slain by the sword of those a secret combinations , fighting against Coriantumr that they might obtain the kingdom. (lds.org)
  • for he had sworn to avenge himself upon Coriantumr of the blood of his brother, who had been slain, and the word of the Lord which came to Ether that Coriantumr should not fall by the sword. (lds.org)
  • soluble
  • Ethers can form hydrogen bonds to water, since the oxygen atom is attracted to the partially-positive hydrogens in water molecules, making them more soluble in water than alkanes. (angelo.edu)
  • acid
  • This process uses solid-supported phosphoric acid catalysts and can be adjusted to make more ether if the need arises. (wikipedia.org)
  • Acetate
  • Progesterone 3-acetyl enol ether , also known as progesterone acetate , as well as 3-acetoxypregna-3,5-dien-20-one , is a progestin which was never marketed. (wikipedia.org)
  • formerly
  • Progesterone 3-acetyl enol ether is closely related to quingestrone , which is also known as progesterone 3-cyclopentyl enol ether and was formerly marketed as an oral contraceptive . (wikipedia.org)
  • Greek
  • It is also personified as a deity, Aether , the son of Erebus and Nyx in traditional Greek mythology. (wikipedia.org)
  • carbon
  • Oxygen is more electronegative than carbon, thus the hydrogens alpha to ethers are more acidic than in simple hydrocarbons. (wikipedia.org)
  • word
  • With this addition the system of elements was extended to five and later commentators started referring to the new first one as the fifth and also called it aether , a word that Aristotle had not used. (wikipedia.org)
  • page
  • For a demonstration of this, see the Demonstrations page on the Ether Trough . (angelo.edu)
  • reaction
  • Another reaction that can be used for the preparation of ethers is the Williamson ether synthesis , in which an alkoxide (produced by dissolving an alkali metal in the alcohol to be used) performs a nucleophilic substitution upon an alkyl halide . (wikipedia.org)
  • When the di-metal salt is pyrolyzed and the reaction products are isolated, it is surprising to obtain a monometal salt of a new perfiuorovinyl ether. (google.com)
  • Lord
  • Moroni abridges the writings of Ether-Ether's genealogy is set forth-The language of the Jaredites is not confounded at the Tower of Babel-The Lord promises to lead them to a choice land and make them a great nation. (lds.org)
  • The prophet Ether exhorts the people to believe in God-Moroni recounts the wonders and marvels done by faith-Faith enabled the brother of Jared to see Christ-The Lord gives men weakness that they may be humble-The brother of Jared moved Mount Zerin by faith-Faith, hope, and charity are essential to salvation-Moroni saw Jesus face to face. (lds.org)
  • form
  • Ether is fairly easy to obtain in a very dry form, either by purchasing it directly from a chemical supply company, or by distilling it from sodium. (angelo.edu)
  • preparation
  • FIELD OF THE INVENTION This invention relates to fluorinated perfiuorovinyl ethers and the preparation thereof. (google.com)