Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Technetium hexafluoride or technetium(VI) fluoride (TcF6) is a yellow inorganic compound with a low melting point. It was first identified in 1961.[3] In this compound, technetium has an oxidation state of +6, the highest oxidation state found in the technetium halides. In this respect, technetium differs from rhenium, which forms a heptafluoride, ReF7.[4] Technetium hexafluoride occurs as an impurity in uranium hexafluoride, as technetium is a fission product of uranium (spontaneous fission in natural uranium, possible contamination from induced fission inside the reactor in reprocessed uranium). The fact that the boiling point of the hexafluorides of uranium and technetium are very close to each other presents a problem in using fluoride volatility in nuclear reprocessing.
^ abcCRC Handbook of Chemistry and Physics, 90th Edition, CRC Press, Boca Raton, Florida, 2009, ISBN 978-1-4200-9084-0, Section 4, Physical Constants of Inorganic Compounds, p. 4-93.
^Drews, T.; Supeł, J.; Hagenbach, A.; Seppelt, K. (2006). "Solid State Molecular Structures of Transition Metal Hexafluorides". Inorganic Chemistry. 45 (9): 3782–3788. doi:10.1021/ic052029f. PMID 16634614.
^Selig, H.; Chernick, C.L.; Malm, J.G. (1961). "The Preparation and Properties of TcF6". Journal of Inorganic and Nuclear Chemistry. 19 (3–4): 377–381. doi:10.1016/0022-1902(61)80132-2.
^Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
and 28 Related for: Technetium hexafluoride information
Technetiumhexafluoride or technetium(VI) fluoride (TcF6) is a yellow inorganic compound with a low melting point. It was first identified in 1961. In...
hexafluoride is a chemical compound with the general formula QXnF6, QXnF6m−, or QXnF6m+. Many molecules fit this formula. An important hexafluoride is...
were discovered in 1996 by Lavalle et al. They heated diammonium technetiumhexafluoride to 300 °C to yield TcNF. Another preparation is to heat a fluoride...
Plutonium hexafluoride boils at 335 K (62 °C; 143 °F) this means that any facility capable of separating uranium hexafluoride from Technetiumhexafluoride is...
mainly uranium hexafluoride, containing the uranium-233 fuel, but also neptunium hexafluoride, technetiumhexafluoride and selenium hexafluoride, as well as...
molecules to vaporize at comparatively low temperatures. Heptafluorides, hexafluorides and pentafluorides have much lower boiling points than the lower-valence...
Rhenium pentafluoride can be synthesised by the reduction of rhenium hexafluoride with hydrogen, rhenium, or tungsten: 2ReF6 + H2 → 2ReF5 + 2HF 5ReF6 +...
ReF4. Rhenium tetrafluoride can be made by the reduction of rhenium hexafluoride with hydrogen, rhenium, or sulfur dioxide: ReF6 + H2 → 2ReF4 + 2HF 2ReF6...
the site. The groundwater is also contaminated with trace amounts of technetium-99, a radioactive fission product; Other site contaminants include polychlorinated...
types of reactors that do not require enriched uranium, or into uranium hexafluoride, which can be enriched to produce fuel for the majority of types of reactors"...
laboratory before it was determined that they do exist in nature after all: technetium (element 43), promethium (element 61), astatine (element 85), neptunium...
depleted uranium hexafluoride above $130 per kilogram in July 2007 from $5 in 2001. The gas centrifuge process, where gaseous uranium hexafluoride (UF 6) is...
half full and the electrons are contributing less to metallic bonding. (Technetium, the previous element, has an exceptionally low value that is off the...
4 melts at 1036 °C (1897 °F). These thirteen are those of molybdenum, technetium, ruthenium, rhodium, tungsten, rhenium, osmium, iridium, platinum, polonium...
mostly used in nuclear fuel processing, to oxidise uranium to uranium hexafluoride for its enriching and to separate it from plutonium, as well as in the...
fluorine and oxygen. He predicted the existence of krypton hexafluoride (KrF 6) and xenon hexafluoride (XeF 6) and speculated that xenon octafluoride (XeF 8)...
that make well-characterized hexafluorides include nine metals in the center of the periodic table (molybdenum, technetium, ruthenium, rhodium, tungsten...
Rhodium(III) chloride, rhodium trifluoride, rhodium pentafluoride and rhodium hexafluoride are examples. The lower oxidation states are stable only in the presence...
chemical energy propulsion system (SCEPS) uses a small tank of sulfur hexafluoride, which is sprayed over a block of solid lithium. The reaction generates...
Completely analogous reactions occur for the niobium component, but the hexafluoride is typically predominant under the conditions of the extraction. Nb2O5...
frequencies, can be obtained by inhaling a dense gas such as sulfur hexafluoride or xenon. Inhaling helium can be dangerous if done to excess, since helium...
(element 129) are predicted to exhibit a +6 oxidation state and form hexafluorides, though 125F6 and 126F6 are predicted to be relatively weakly bound...
and above, only the tetrafluoride, pentafluoride and hexafluoride are known. Iridium hexafluoride, IrF 6, is a volatile yellow solid, composed of octahedral...
4), RnF 6 would likely be much less stable than xenon hexafluoride (XeF 6): radon hexafluoride would also probably be a regular octahedral molecule, unlike...
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