Plutonium hexafluoride

Stability and Electronic Spectrum of Cesium Plutonium Hexafluoride... 

Plutonium compounds, 19 687-691 protection against, 19 702 Plutonium dioxide, 19 688—689 Plutonium fuel fabrication facilities, 17 547 Plutonium-gallium alloys, 19 683-684 Plutonium halides, 19 689-690 Plutonium hexafluoride, 19 689 Plutonium hydrides, 19 690 Plutonium ions... 

Platinum tetrafluoride, 4348 Plutonium hexafluoride, 4372 Potassium chloride, 4015... 

Palladium(II) oxide, 4825 Palladium(IV) oxide, 4835 Perchloric acid, 3998 Periodic acid, 4425 Permanganic acid, 4434 Peroxodisulfuric acid, 4482 Peroxodisulfuryl difluoride, 4328 Peroxomonosulfuric acid, 4481 Peroxytrifluoroacetic acid, 0666 Platinum hexafluoride, 4371 Platinum(IV) oxide, 4836 Plutonium hexafluoride, 4372 Potassium bromate, 0255 Potassium chlorate, 4017 Potassium dichromate, 4248 Potassium iodate, 4619 Potassium nitrate, 4650 Potassium nitrite, 4649 Potassium perchlorate, 4018 Potassium periodate, 4620 Potassium permanganate, 4647 Rhenium hexafluoride, 4373 Rubidium fluoroxysulfate, 4309 Ruthenium(VIII) oxide, 4862 Selenium dioxide, 4838 Selenium dioxide, 4838 Silver permanganate, 0021 Sodium chlorate, 4039 Sodium chlorite, 4038 Sodium dichromate, 4250 Sodium iodate, 4624 Sodium nitrate, 4721 Sodium nitrite, 4720... 

Platinum tetrafluoride, 4342 Plutonium bismuthide, 0231 Plutonium hexafluoride, 4366 Plutonium(III) hydride, 4504 Plutonium(IV) nitrate, 4763a Plutonium nitride, 4721 Plutonium, 4882 Poly(acetylene), 0683 Poly(acrylonitrile), 1105... 

Platinum tetrafluoride, 4342 Plutonium hexafluoride, 4366 Potassium chloride, 4009... 

Palladium(II) oxide, 4819 Palladium(IV) oxide, 4829 Perchloric acid, 3992 Periodic acid, 4419 Permanganic acid, 4428 Peroxodisulfuric acid, 4476 Peroxodisulfuryl difluoride, 4322 Peroxomonosulfuric acid, 4475 Peroxytrifluoroacetic acid, 0662 Platinum hexafluoride, 4365 Platinum(IV) oxide, 4830 Plutonium hexafluoride, 4366 Potassium bromate, 0255 Potassium chlorate, 4011 Potassium dichromate, 4242 Potassium iodate, 4614 Potassium nitrate, 4645 Potassium nitrite, 4644 Potassium perchlorate, 4012 Potassium periodate, 4615 Potassium permanganate, 4642 Rhenium hexafluoride, 4367 Rubidium fluoroxysulfate, 4303 Ruthenium(VIII) oxide, 4856 Selenium dioxide, 4832 Selenium dioxide, 4832 Silver permanganate, 0021... 

Isotope Effects in the Molecular Spectrum of Plutonium Hexafluoride, R. Kugel, C. Williams, M. Fred, J.G. Malm, W.T. Camall, J.C. Hindman, W.J. Childs, andL.S. Goodman, J. Chem. Phys. 65, 3486-3492 (1976). 

Fluorescence Studies on Neptunium and Plutonium Hexafluoride Vapors, J.V Beitz, C.W. Williams, and W.T. Camall, J. Chem. Phys. 76, 2756-2757 (1982). 

Another unsuccessful attempt has been made to prepare AmFe, by fluorinating Am203 in the presence of PtFe (100). Complexes of UFe such as Na2UF8 (d3), NH4UF7 (102) and NOUF7 (56) are now known, but the complexing behavior of neptunium and plutonium hexafluorides and uranium hexachloride has scarcely been investigated. 

Plutonium oxide, PuO (CAS 12035-83-5) Plutonium dioxide, PuOi (CAS 12059-95-9) Plutonium nitride, PuN (CAS 12033-54-4) Plutonium tetrafluoride, Pup4 (CAS 13709-56-3) Plutonium hexafluoride, PuF6 (CAS 13693-06-6)... 

Effective purification of plutonium hexafluoride is proved through the selective adsorption of FPs on NaAlFi. A rather high decontamination factor (more than 5 x 103) is attained for ruthenium fluoride (36). A new separation process of PuF6 from UF6 by the selective adsorption onto UO2F2 is proposed (37). 

The volatile plutonium hexafluoride can be prepared by fluorination of the tetrafluoride at 550°C ... 

Unlike the stable uranium hexafluoride, which has a negative free energy of formation, plutonium hexafluoride is thermodynamically unstable. It dissociates to Fj and the relatively nonvolatile PUF4, althou the rate of thermal decomposition is very low at room temperature. If the specific alpha activity of plutonium is equivalent to that of Pu, the rate of decomposition of solid PuF at room temperature is controlled by radiolytic decomposition, amoimting to 1.5 percent per day [W2]. 

Although the existence of a volatile higher fluoride of plutonium had been surmised from tracer experiments, positive evidence of the existence of PuF6 was obtained by Florin (31) who first prepared the compound. An investigation of the preparation and properties of PuF6 was also conducted by Mandleberg et al. (58). but in recent years the compound has been most intensively studied by Weinstock and his collaborators. Plutonium hexafluoride can be prepared by a variety of procedures similar to those used for the preparation of uranium hexafluoride. The most widely used method consists in the fluorination of plutonium tetrafluoride with elemental fluorine. Whereas uranium hexafluoride can be prepared by the analogous reaction at 300°, and neptunium hexafluoride at 500°, the preparation of plutonium hexafluoride by this reaction appears to require a... 

Fig. 7. Reactor for preparation of plutonium hexafluoride (86). A, nickel dish filled with PuF< B, brass reactor can C, removable cover for loading reactor D, tongue and groove Teflon gasket for closure E, nickel supporting rod for nickel dish F, coil of 3/16-in. o.d. copper tubing G, Fluorothene window H, Teflon seal and insulator I, Micalex insulator.

Plutonium hexafluoride is a reddish-brown solid, and like neptunium hexafluoride, is light sensitive. Again, as in the case of uranium and neptunium hexafluorides, plutonium hexafluoride may be handled and stored in quartz or Pyrex equipment with no sign of decomposition provided the glass has been thoroughly outgassed and the hexafluoride is completely free of hydrogen fluoride. Any of the actinide hexafluorides may be heated to 200° in quartz apparatus with little if any attack on the container. 

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