Search results
Results from the WOW.Com Content Network
Scandium monosulfide is a chemical compound of scandium and sulfur with the chemical formula ScS. Although its formula might suggest that it is a compound of scandium(II), i.e. [Sc 2+][S 2−], ScS is probably more realistically described as a pseudo-ionic compound, containing [Sc 3+][S 2−], with the remaining electron occupying the conduction band of the solid.
The crude product is then purified by chemical vapor transport at 950 °C using iodine as the transport agent. [1] Sc 2 O 3 + 3H 2 S → Sc 2 S 3 + 3H 2 O. Scandium(III) sulfide can be prepared by reacting scandium(III) chloride with dry hydrogen sulfide at elevated temperature: [2] 2 ScCl 3 + 3 H 2 S → Sc 2 S 3 + 6 HCl
Scandium is a chemical element with the symbol Sc and atomic number 21. It is a silvery-white metallic d-block element . Historically, it has been classified as a rare-earth element , [ 9 ] together with yttrium and the lanthanides .
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 ...
This complements alternative listing at list of inorganic compounds. There is no complete list of chemical compounds since by nature the list would be infinite. Note: There are elements for which spellings may differ, such as aluminum/aluminium, sulfur/sulphur, and caesium/cesium.
Scandium sulfide can refer to two different sulfides of scandium: Scandium monosulfide, ScS; Scandium(III) sulfide, Sc 2 S 3; Detailed information on each of these ...
Chemical formula Synonyms CAS number SCl 2: sulfur dichloride: 10545–99–0 SCl 4: sulfur tetrachloride: 13451–08–6 SF 2: sulfur difluoride: 13814–25–0 SF 4: sulfur tetrafluoride: 7783–60–0 SF 6: sulfur hexafluoride: 2551–62–4 SO: sulfur monoxide: 13827–32–2 SO 2: sulfur dioxide: 7446–09–5 SO 3: sulfur trioxide: 7446 ...
Chemical formula. Sc 2 (SO 4) 3 Molar mass: 378.09 g mol −1 ... Scandium sulfate is the scandium salt of sulfuric acid and has the formula Sc 2 (SO 4) 3. References