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Niobiumdioxid
NbO2 · dioxoniobium · niobium dioxide · NIOBIUM OXIDE S · NIOBIUM (IV) OXIDE · niobiumoxide(nbo2) · Niobium(IV)dioxide · Niobium oxide (NbO2)
Identifikatoren & physikalische Daten
| CAS No. | 12034-59-2 |
|---|---|
| Summenformel | NbO2 |
| Durchschnittliche Molmasse | 124,905 g/mol |
| Monoisotopische Masse | 124,8962 g/mol |
| SMILES | [O]=[Nb]=[O] |
| InChIKey | HFLAMWCKUFHSAZ-UHFFFAOYSA-N |
| PubChem CID | 82839 |
| EC No. | 234-809-7 |
| DTXSID | DTXSID90893180 |
| Lokaler Name | Niobiumdioxid |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 34,1 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 3 |
| Formalladung | 0 |
| Komplexität | 18,3 |
| Stoffklassen | Metals -> Metals, Inorganic Compounds |
| SpringerMaterials Properties | phonon wavenumber |
| Physical Description | Black powder[Sigma-Aldrich MSDS] |
| Schmelzpunkt | 1901°C |
| Dichte | 5.9 g/mL at 25 °C(lit.) |
| Lagerbedingungen | Store at room temperature, keep dry and cool |
| Aggregatzustand | Powder |
| Wichte | 5.9 |
| Farbe | white tetragonal crystals, crystalline or powder |
| Löslichkeit | Insoluble in water. |
| Spezifische Wärmekapazität | Cp(crystal): 0.46 J/(g·K), at 25℃ |
| InChI | 1S/Nb.2O |
| InChIKey | HFLAMWCKUFHSAZ-UHFFFAOYSA-N |
| SMILES | O=[Nb]=O |
| CAS Datenbank | 12034-59-2(CAS DataBase Reference) |
| EPA chemische Informationen | Niobium oxide (NbO2) (12034-59-2) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 62.9% (129 of 205) of all reports.WarningH315 (37.1%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 205 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Regulatorische Informationen | REACH registered substance: Niobium dioxide (EC: 234-809-7) |
| Gefahrenübersicht | A skin and strong eye irritant[Sigma-Aldrich MSDS] See Niobium. |
| Hazard Classes and Categories | Skin Irrit. 2 (37.1%) |
| Wassergefährdungsklasse (WGK) | 3 |
| TSCA-Inventar-Status | TSCA listed |
| Zollcode | 2825908590 |
| R-Sätze (R) | 36/37/38 |
| Gefahrensymbole | Xi |
| Sicherheitshinweise (S) | 26-37/39 |
| Lagerklasse | 11 - Combustible Solids |
Anwendungen & Verwendung
Verwenden
Niobium(IV) oxide is used as a reducing agent, which reduces carbon dioxide and sulfur dioxide to carbon and sulfur respectively. It finds application in dielectric material for electronic capacitors. It is also used for manufacturing metal niobium metal, in optical glass and in electronic industry.