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Scandium(III) hydroxide is an inorganic compound with the chemical formula Sc(OH) 3, the trivalent hydroxide of scandium.It is an amphoteric compound. [2] It is slightly soluble in water, and its saturated solution (pH = 7.85) contains Sc(OH) 3 and a small amount of Sc(OH) + 2.
In all four halides, the scandium is 6-coordinated. They can be prepared by reacting scandium oxide or scandium hydroxide with the corresponding acid: [3] Sc(OH) 3 + 3 HX → ScX 3 + 3 H 2 O. The halides are Lewis acids; for example, ScF 3 dissolves in a solution containing excess fluoride ion to form [ScF 6] 3−. The coordination number 6 is ...
Scandium is a chemical element with the symbol Sc and atomic number 21. ... 3 and the hydroxide Sc(OH) ... (III). In the larger Y 3+ and ...
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Scandium is distributed sparsely and occurs in trace amounts in many minerals. [69] Rare minerals from Scandinavia [70] and Madagascar [71] such as gadolinite, euxenite, and thortveitite are the only known concentrated sources of this element, the latter containing up to 45% of scandium in the form of scandium(III) oxide. [70]
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Bill Byrge, an actor who appeared in many of the “Ernest” comedy films as “Bobby,” died on Thursday at the age of 92 in Nashville, Tenn. Byrge’s cousin, Sharon Chapman, confirmed his ...
Scandium(III) oxide or scandia is a inorganic compound with formula Sc 2 O 3.It is one of several oxides of rare earth elements with a high melting point.It is used in the preparation of other scandium compounds as well as in high-temperature systems (for its resistance to heat and thermal shock), electronic ceramics, and glass composition (as a helper material).