Sulfuric acid, yttrium(3+) salt (3:2), octahydrate
Yttrium(III) · YTTRIUM SULFATE · YTTRIUM(III) SULFATE · Yttrium Sulfate Hydrate · Yttriumsulfate (Y2(SO4)3) · Yttrium sulfate 8-hydrate · YTTRIUMSULPHATEOCTAHYDRATE · YTTRIUM SULFATE OCTAHYDRATE
Identifikatoren & physikalische Daten
| CAS No. | 7446-33-5 |
|---|---|
| Summenformel | H16O20S3Y2 |
| Durchschnittliche Molmasse | 610,121 g/mol |
| Monoisotopische Masse | 609,75140251 g/mol |
| SMILES | O.O.O.O.O.O.O.O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Y+3].[Y+3] |
| InChIKey | OMBXBIHFXZAMLA-UHFFFAOYSA-H |
| PubChem CID | 165608 |
| EC No. | 628-944-4 |
| DTXSID | DTXSID20225470 |
Chemische & physikalische Eigenschaften
| Dichte | 2.5 g/mL at 25 °C(lit.) |
|---|---|
| Aggregatzustand | Crystalline |
| Wichte | 2.558 |
| Farbe | White to pale yellow |
| Löslichkeit | Water solubility decreases with increasing temperature. Soluble in water. |
| Merck | 14,10107 |
| CAS Datenbank | 7446-33-5(CAS DataBase Reference) |
Sicherheit & Vorschriften
| Wassergefährdungsklasse (WGK) | 3 |
|---|---|
| TSCA-Inventar-Status | Yes |
| R-Sätze (R) | 36/37/38 |
| Gefahrensymbole | Xi |
| Sicherheitshinweise (S) | 26-37/39 |
Anwendungen & Verwendung
Beschreibung
Yttrium(III) sulfate octahydrate, with the chemical formula Y2(SO4)3-8H2O, consists of infinite layers parallel to (10\overline 1), with [Y(H2O)4(SO4)3/2] being the only repeating unit. The layers are connected to each other using only moderately strong hydrogen bonds. The trivalent yttrium cation is coordinated by eight O-atoms from four sulfate groups and four water molecules in a distorted square antitetrahedron [YO8]. It is of the same structural type as the rare earth sulfate octahydrate[1].Figure 1. View perpendicular to the (10 1) layer of the title compound, with [Y(H 2 O) 4/1 (SO 4 (1)) 3/3 (SO 4 (2)) 1/2 ] as the repeat unit. Key: [SO 4 ] tetrahedra (yellow), [YO 8 ] antiprisms (red), oxygen (blue) and hydrogen (light grey) atoms.
Verwenden
Yttrium sulfate is used in making many yttrium salts.
Herstellung & Synthese
synthetische
Yttrium sulfate is produced as an intermediate in recovering yttrium from monazite or xenotime (see Yttrium, Recovery). Rare earth sulfates are separated on a cation exchange resin bed. Yttrium fraction is purified by fractional crystallization. Alternatively, yttrium sulfate may be prepared by reacting yttrium oxide with sulfuric acid.