uranium tetrachloride


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uranium tetrachloride

[yə′rā·nē·əm ¦te·trə′klȯr‚īd]
(inorganic chemistry)
UCl4 Poisonous, radioactive, hygroscopic, dark-green crystals; soluble in alcohol and water; melts at 590°C, boils at 792°C. Also known as uranic chloride.
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In 1841, Eugene-Melchior Peligot, Professor of Analytical Chemistry at the Conservatoire National des Arts et Metiers (Central School of Arts and Manufactures) in Paris, isolated the first sample of uranium metal by heating uranium tetrachloride with potassium.
One method of preparing uranium tetrachloride (UCl4) is to directly combine chlorine with either uranium metal or uranium hydride.
In practice, the mass difference was actually less than 1%, as easily-vaporized and ionizable uranium tetrachloride was used as the process material.