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Gadolinium combines with most elements to form Gd(III) derivatives. It also combines with nitrogen, carbon, sulfur, phosphorus, boron, selenium, silicon, and arsenic at elevated temperatures, forming binary compounds. [18] Unlike the other rare-earth elements, metallic gadolinium is relatively stable in dry air.
The World Health Organization issued a restriction on use of several gadolinium contrast agents in November 2009 stating that "High-risk gadolinium-containing contrast agents (Optimark, Omniscan, Magnevist, Magnegita, and Gado-MRT ratiopharm) are contraindicated in patients with severe kidney problems, in patients who are scheduled for or have ...
Gadolinium(III) oxide (archaically gadolinia) is an inorganic compound with the formula Gd 2 O 3. It is one of the most commonly available forms of the rare-earth element gadolinium , derivatives, of which are potential contrast agents for magnetic resonance imaging .
These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium, and gadolinium. Earths were defined by the Ancient Greeks as "materials that could not be changed further by the sources of heat then available". [1]
Gadolinium gallium garnet (GGG, Gd 3 Ga 5 O 12) is a synthetic crystalline material of the garnet group, with good mechanical, thermal, and optical properties. It is typically colorless. It has a cubic lattice, a density of 7.08 g/cm 3 and its Mohs hardness is variously noted as 6.5 and 7.5.
Pages in category "Gadolinium compounds" The following 25 pages are in this category, out of 25 total. This list may not reflect recent changes. G. Gadolinium acetate;
Gadolinium monosulfide is a binary inorganic compound of gadolinium and sulfur with the chemical formula GdS. [1] [2] Synthesis. Heating stoichiometric amounts of ...
The break between the two groups is sometimes put elsewhere, such as between elements 63 (europium) and 64 (gadolinium). [30] The actual metallic densities of these two groups overlap, with the "light" group having densities from 6.145 (lanthanum) to 7.26 (promethium) or 7.52 (samarium) g/cc, and the "heavy" group from 6.965 (ytterbium) to 9.32 ...