Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Protactinium tetrafluoride is a binary inorganic compound of protactinium metal and fluorine with the chemical formula PaF4.[1]
^Hawkins, Donald T. (6 December 2012). Binary Fluorides: Free Molecular Structures and Force Fields A Bibliography (1957–1975). Springer Science & Business Media. p. 50. ISBN 978-1-4684-6147-3. Retrieved 2 April 2024.
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Protactiniumtetrafluoride is a binary inorganic compound of protactinium metal and fluorine with the chemical formula PaF4. Protactinium tetrafluoride...
by the reduction of protactiniumtetrafluoride with barium in a carbon crucible at a temperature of about 1400 °C. Protactinium forms borohydrides, which...
Uranium tetrafluoride is the inorganic compound with the formula UF4. It is a green solid with an insignificant vapor pressure and low solubility in water...
Protactinium compounds are compounds containing the element protactinium (symbol: Pa). These compounds usually have protactinium in the +5 oxidation state...
of protactinium. 233Pa has convenient half-life and energy of γ-radiation, and thus was used in most studies of protactinium chemistry. Protactinium-233...
insoluble residue, probably ThO(OH, Cl)H is left behind, similarly to protactinium and uranium. Finely divided thorium metal presents a fire hazard due...
the periodic table, it lies to the right of actinium, to the left of protactinium, and below cerium. Pure thorium is very ductile and, as normal for metals...
ammonia to form adducts. Carbon tetrafluoride is tetrahedral and inert; its group analogues, silicon and germanium tetrafluoride, are also tetrahedral but behave...
threat. Notably, the chemical separation of an intermediate isotope — protactinium-233 — that decays into 233U is a cause for concern. ... The International...
primarily undergo alpha decay, except for 229U and 231U, which decay to protactinium isotopes via positron emission and electron capture, respectively; the...
thorium salt absorbs neutrons and slowly converts its thorium to protactinium-233. Protactinium-233 can be left in the blanket region where neutron flux is...
atoms such as fluorine or oxygen, as in xenon difluoride (XeF 2), xenon tetrafluoride (XeF 4), xenon hexafluoride (XeF 6), xenon tetroxide (XeO 4), and sodium...
three heavier members are volatile molecular compounds, whereas the tetrafluoride is polymeric. All four halides are known for Sn(II) also: SnF2, SnCl...
trinitride (U 2N 3). All uranium fluorides are created using uranium tetrafluoride (UF 4); UF 4 itself is prepared by hydrofluorination of uranium dioxide...
the maximum known being in the pentaiodides of niobium, tantalum, and protactinium. Iodides can be made by reaction of an element or its oxide, hydroxide...
ammonium fluoride dissolved in anhydrous hydrogen fluoride. Like carbon tetrafluoride, it is not at all reactive and is stable in water or dilute aqueous...
cerium to its left and neodymium to its right, and above the actinide protactinium. It is a ductile metal with a hardness comparable to that of silver....
is common among the actinides. The crystal structures of neptunium, protactinium, uranium, and plutonium do not have clear analogs among the lanthanides...
is also readily hydrolyzed, melting at 86.5 °C. The yellow ruthenium tetrafluoride is probably also polymeric and can be formed by reducing the pentafluoride...
through the heating of recently isolated potassium metal with silicon tetrafluoride, but they did not purify and characterize the product, nor identify...
the maximum known being in the pentaiodides of niobium, tantalum, and protactinium. Iodides can be made by reaction of an element or its oxide, hydroxide...
irritant. With different stoichiometry, the elements form selenium tetrafluoride, a laboratory-scale fluorinating agent, instead. The only stable chlorides...
configuration). Therefore, while RnF 4 should have a similar stability to xenon tetrafluoride (XeF 4), RnF 6 would likely be much less stable than xenon hexafluoride...
reacts vigorously with fluorine at 500 °C (932 °F) to form platinum tetrafluoride. Platinum is insoluble in hydrochloric and nitric acid, but dissolves...
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