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Discandiumtrisulfid
SCANDIUM SULFIDE · scandium(III) sulfide · discandium trisulphide · SCANDIUM(III) SULFIDE, 99.99% · Scandium (III) sulfide, 99.9% (metals basis)
Identifikatoren & physikalische Daten
| CAS No. | 12166-29-9 |
|---|---|
| Summenformel | S3Sc2 |
| Durchschnittliche Molmasse | 186,1 g/mol |
| Monoisotopische Masse | 185,82803 g/mol |
| SMILES | [S-2].[S-2].[S-2].[Sc+3].[Sc+3] |
| InChIKey | KAYAWNAUDDJSHN-UHFFFAOYSA-N |
| PubChem CID | 166646 |
| EC No. | 235-320-1 |
| DTXSID | DTXSID10923918 |
| Lokaler Name | Discandiumtrisulfid |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 3 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 3 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 5 |
| Formalladung | 0 |
| Komplexität | 0 |
| Stoffklassen | Metals -> Rare Earth Metals |
| Physical Description | Black odorless powder-like solid[MSDSonline] |
| Schmelzpunkt | 1775°C |
| Dichte | 2.910 |
| Aggregatzustand | yellow orthorhombic crystals |
| Farbe | yellow orthorhombic crystals, crystalline |
| EPA chemische Informationen | Scandium sulfide (Sc2S3) (12166-29-9) |
Sicherheit & Vorschriften
| Gefahrenübersicht | An irritant[MSDSonline] See RARE EARTH METALS and the linked occupational diseases. |
|---|---|
| Unerwünschte Wirkungen | Fibrogenic - Inducing tissue injury and fibrosis (scarring). |
| TSCA-Inventar-Status | TSCA listed |
Herstellung & Synthese
synthetische
Scandium(III) sulfide, Sc2S3, is a yellow solid. Metal sulfides are typically prepared by heating mixtures of the two elements, but in the case of scandium, this method results in the formation of scandium monosulfide, ScS. Sc2S3 can be produced by heating scandium(III) oxide under flowing hydrogen sulfide in a graphite crucible to 1550℃ or higher for 2-3 hours. The crude product is subsequently purified by chemical vapor transport at 950℃ utilizing iodine as the transport agent.Sc2O3+3H2S→Sc2S3 +3H2O