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- W1256131859 abstract "Protactinium tetrachloride was first prepared (125) on the microgram scale by hydrogen reduction of the pentachloride at 800ºC, a method since employed at 400°C for the preparation of 50-mg batches. It has also been prepared (125) by reacting the dioxide with carbon tetrachloride vapor, but since the pentachloride is much easier to prepare than the dioxide reduction of the former with aluminum at 400°C appears to be the most attractive route to the tetrachloride. It is a greenish-yellow solid at room temperature, but above 300°C and it is bright red. Like the other actinide tetrachlorides (Th-Np inclusive), it is known to possess the 8-coordinate UCI-type structure, but no bond lengths have been reported. Protactinium tetrachloride dissolves readily without hydrolysis in oxygen-free hydrochloric acid solution, and the spectral properties of such solutions have been reported. It reacts with antimony sesquioxide at about 200°C to yield protactinium(1V) oxydichloride, PaOC12, a dark green solid that can also be prepared by the interaction of the tetrachloride and dioxide" @default.
- W1256131859 created "2016-06-24" @default.
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- W1256131859 date "1970-01-01" @default.
- W1256131859 modified "2023-09-23" @default.
- W1256131859 title "Some Recent Preparative Chemistry of Protactinium" @default.
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- W1256131859 doi "https://doi.org/10.1016/s0065-2792(08)60047-3" @default.
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