Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Chlorine fluoride oxygen-containing

Various polymeric materials were tested statically with both gaseous and liquefied mixtures of fluorine and oxygen containing from 50 to 100% of the former. The materials which burned or reacted violently were phenol-formaldehyde resins (Bakelite) polyacrylonitrile-butadiene (Buna N) polyamides (Nylon) polychloroprene (Neoprene) polyethylene polytriflu-oropropylmethylsiloxane (LS63) polyvinyl chloride-vinyl acetate (Tygan) polyvinylidene fluoride-hexafluoropropylene (Viton) polyurethane foam. Under dynamic conditions of flow and pressure, the more resistant materials which binned were chlorinated polyethylenes, polymethyl methacrylate (Perspex) polytetraflu-oroethylene (Teflon). [Pg.1519]

Chlorine fluoride, 21 235, 236, 238, 240, 242, 244, 246, 247, 249 geometry of, 18 320-322 oxygenation of, 18 349 oxygen-containing, 21 245 Chlorine fluoride oxide radicals, 18 385, 386 Chlorine hydroxide, 5 219 Chlorine isotope, half-life determination, 2 ... [Pg.46]

Vibrational Data for Selected Nitrogen and Chlorine Fluorides Containing Oxygen"... [Pg.245]

With world regulatory pressures on the use of chlorinated compounds increasing, the synthesis of fluorine-containing hydrocarbons from oxygen-containing substrates has received much attention in recent years. Reacting simple molecules such as formaldehyde and carbonyl fluoride over an activated carbon catalyst [90] gives an 86% yield of HFC-32 (eq 25). [Pg.205]

Chlorine is known to occur in seven formally positive valency states. Chlorine in its higher degrees of oxidation is found primarily in chlorine fluorides or oxides and in oxygen-containing acids. As for CIN bonds, only C1(I) derivatives have been studied. [Pg.43]

The atomic composition of polymers encompasses primarily non-metallic elements such as carbon (C), hydrogen (H) and oxygen (O). In addition, recurrent elements are nitrogen (N), chlorine (Cl), fluoride (F) and sulfur (S). The so-called semi-organic polymers contain other non-metallic elements such as silicon (Si) in silicone or polysiloxane, as well as bor or beryllium (B). Although other elements can sometime be found in polymers, because of their very specific nature, we will not mention them here. The properties of the above elements lead to specific properties that are common of all polymers. These are ... [Pg.2]

Uranium Hexafluoride, Uranic Fluoride, UFg, is the only known compound of hexavalent uranium (with the possible exception of the boride in which the condition of the uranium is not established) which does not contain oxygen. It was first prepared by Ruff and Heinzel-mann by the action of fluorine on uranium pentachloride at —40° C. The action proceed.s as already described (see equation above), and the volatile hexafluoride is distilled off from the tetrafiuoride. The penta-ehloride, Avhen acted upon by dry hydrogen fluoride, yields a compound, UF5.a HF, which breaks up on distillation into the tetra- and hexafluorides, but this method of preparation is less convenient than the preceding one owing to the difficulty of separating the hexafluoride from hydrogen fluoride. Uranium carbide reacts with fluorine in presence of a little chlorine at —70° C., vith formation of the hexafluoride. [Pg.292]

NH, NH-, -CN), silicon and olefinic double bonds are more polymerizable while those containing oxygen (e.g. -C=0,-0-,-0H), chlorine, aliphatic hydrocarbon and cyclic hydrocarbons tend to decompose. Brown (13) reported in his studies of a series of vinyl halides that the dihaloethylenes polymerize more rapidly than the corresponding monohalides and that chlorides and bromides polymerize more rapidly than the fluorides. Kobayashi, et. al. (IJ) found that the additons of certain halo-genated compounds to hydrocarbon monomer streams often dramatically increases the polymerization rate. Thus, these halogenated compounds may be considered to act as gas phase catalysts for the plasma polymerization of hydrocarbons. [Pg.4]


See other pages where Chlorine fluoride oxygen-containing is mentioned: [Pg.1653]    [Pg.557]    [Pg.338]    [Pg.433]    [Pg.1653]    [Pg.753]    [Pg.298]    [Pg.124]    [Pg.294]    [Pg.499]    [Pg.856]    [Pg.940]    [Pg.984]    [Pg.1051]    [Pg.210]    [Pg.752]    [Pg.275]    [Pg.84]    [Pg.327]    [Pg.597]    [Pg.244]    [Pg.629]    [Pg.339]    [Pg.6]    [Pg.209]    [Pg.508]    [Pg.45]    [Pg.540]    [Pg.816]    [Pg.311]    [Pg.397]    [Pg.850]    [Pg.995]    [Pg.257]    [Pg.389]    [Pg.984]    [Pg.6]    [Pg.209]    [Pg.508]   
See also in sourсe #XX -- [ Pg.245 ]




SEARCH



Chlorine fluoride

Chlorine fluoride oxygenation

Chlorine oxygen fluorides

Containers chlorine

Containers, chlorination

Oxygen containing

Oxygen fluoride

© 2024 chempedia.info