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Uranium hexachloride
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<p>Uranium hexachloride (UCl6) is an <a href="/facts/Inorganic/TfFfzxSz">inorganic</a> <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a> of <a href="/facts/Uranium/n2sGWBzU">uranium</a> in the +6 <a href="/facts/Oxidation_state/W53W6s6V">oxidation state</a>. UCl6 is a metal halide composed of <a href="/facts/Uranium/n2sGWBzU">uranium</a> and <a href="/facts/Chlorine/y27UwYBM">chlorine</a>. It is a multi-luminescent dark green crystalline solid with a vapor pressure between 1-3 mmHg at 373.15 K. UCl6 is stable in a <a href="/facts/Vacuum/BTk3goyV">vacuum</a>, dry air, <a href="/facts/Nitrogen/Nf1QpGDz">nitrogen</a> and <a href="/facts/Helium/yRul93TG">helium</a> at <a href="/facts/Room_temperature/YHwUIUTE">room temperature</a>. It is soluble in <a href="/facts/Carbon_tetrachloride/S2ekjT0E">carbon tetrachloride</a> (CCl4). Compared to the other uranium halides, little is known about UCl6. </p>