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Gadolinium oxide forms on the surface of gadolinium metal. Gadolinium oxide is a rather basic oxide, indicated by its ready reaction with carbon dioxide to give carbonates. It dissolves readily in the common mineral acids with the complication that the oxalate, fluoride, sulfate and phosphate are very insoluble in water and may coat the grains ...
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Continuing evidence of the retention of gadolinium in brain and other tissues following exposure to gadolinium containing contrast media, led to a safety review by the Committee for Medicinal Products for Human Use (CHMP) which led the EMA to restrict or suspend authorization for the intravenous use of most brands of linear gadolinium-based ...
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However, gadolinium can be found on rare occasions in the 0, +1 and +2 oxidation states. All four trihalides are known. All are white, except for the iodide, which is yellow. Most commonly encountered of the halides is gadolinium(III) chloride (GdCl 3). The oxide dissolves in acids to give the salts, such as gadolinium(III) nitrate.
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The decahydrate of gadolinium oxalate thermally decomposes to obtain the anhydrous form, which can then be heated to produce gadolinium oxide. [2] Gadolinium oxalate reacts with hydrochloric acid to produce Gd(C 2 O 4)Cl. [3] It also reacts with sodium hydroxide under hydrothermal conditions to produce gadolinium hydroxide. [1]