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Values of capacitors are usually specified in terms of SI prefixes of farads (F), microfarads (μF), nanofarads (nF) and picofarads (pF). [9] The millifarad ( mF ) is rarely used in practice; a capacitance of 4.7 mF (0.0047 F), for example, is instead written as 4 700 μF .
Uranium pentafluoride is an intermediate in the conversion of uranium tetrafluoride to volatile UF 6: 2 UF 4 + F 2 → 2 UF 5 2 UF 5 + F 2 → 2 UF 6. It can be produced by reduction of the hexafluoride with carbon monoxide at elevated temperatures. [1] 2 UF 6 + CO → 2 UF 5 + COF 2. Other reducing agents have been examined. [2]
Phosphorus oxyfluoride is prepared by partial hydrolysis of phosphorus pentafluoride.. Phosphorus oxyfluoride is the progenitor of the simple fluorophosphoric acids by hydrolysis.
Phosphorus pentafluoride is a Lewis acid.This property is relevant to its ready hydrolysis. A well studied adduct is PF 5 with pyridine.With primary and secondary amines, the adducts convert readily to dimeric amido-bridged derivatives with the formula [PF 4 (NR 2)] 2.
The conversion factor for the 238 U isotopologue of UF 6 ("hex") to "U mass" is 0.676. [ 15 ] Gaseous diffusion requires about 60 times as much energy as the gas centrifuge process: gaseous diffusion-produced nuclear fuel produces 25 times more energy than is used in the diffusion process, while centrifuge-produced fuel produces 1,500 times ...
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The bulk density of UF 4 varies from about 2.0 g/cm 3 to about 4.5 g/cm 3 depending on the production process and the properties of the starting uranium compounds. A molten salt reactor design, a type of nuclear reactor where the working fluid is a molten salt , would use UF 4 as the core material.
Perfluoroalkanes are very stable because of the strength of the carbon–fluorine bond, one of the strongest in organic chemistry. [4] Its strength is a result of the electronegativity of fluorine imparting partial ionic character through partial charges on the carbon and fluorine atoms, which shorten and strengthen the bond (compared to carbon-hydrogen bonds) through favorable covalent ...