Grundinformationen
- CAS
11113-81-8- Standard-SMILES
[O-2].[O-2].[O-2].[Pr+3].[Pr+3]- InChIKey
MMKQUGHLEMYQSG-UHFFFAOYSA-N- Summenformel
- Pr2-O3
- Durchschnittliche Molmasse
- 329,814 g/mol
- Monoisotopische Masse
- 329,80004946
Namen und Bezeichner
- Bevorzugter Name
- Praseodymium oxide
- IUPAC
- tris(oxygen(2-));bis(praseodymium(3+))
- Lokaler Name
- Dipraseodymtrioxid
- Englischer Name
- Praseodymium(III) oxide 99.9%
- Summenformel
- O3Pr2
- Molmasse
- 329.8135
Namen und Synonyme
Praseodymium oxide12036-32-7Dipraseodymium trioxide11113-81-8EINECS 234-845-3PraseodymiaPraseodymium trioxidePraseodymium sesquioxideRefChem:175738DTXSID001014600234-845-3Praseodymium oxide (Pr2O3)
Weitere Namen anzeigen
praseodymium(3+)PrasedyMiuM oxideIII)PrasedyMiuM(III)Praseodymium HEXAOXIDEPrasedymium(III) oxidepraseodymiumoxide(pr2o3)praseodymium(III) trioxidePraseodymium(III) oxide 99.9%
Praseodymium(III) oxideoxygen(2-);praseodymium(3+)PRASEODYMIUM(III) OXIDE 99.9per centSCHEMBL28208DTXSID50884498Q420890
Datenbank-Bezeichner
- CAS
11113-81-8、12036-32-7- PubChem CID
- 165911
- DTXSID
DTXSID50884498- EC Number
- 234-845-3
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 3 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 3
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 5
- Formalladung
- 0
- Komplexität
- 0
Experimentelle und physikochemische Eigenschaften
Chemical ClassesMetals -> Rare Earth Metals
Density6.9 @25 °C
Melting Point2300 °C
Physical Description
Dry Powder
Yellow-green solid; Insoluble in water; Soluble in acids; Hygroscopic; [Hawley]
Physikochemische Eigenschaften
- Schmelzpunkt
- 2300 °C · 2300°C
- Siedepunkt
- 3760 ℃[at · 3760℃[at 101 325 Pa]
- Dichte
- 7.07 · 7.07
- storage temp.
- Store at room temperature, keep dry and cool
- Aggregatzustand
- Sintered Lump
- Wichte
- 7.07 · 7.07
- Farbe
- white hexagonal, hexane crystals, crystalline
- Wasserlöslichkeit
- Insoluble in water. Moderately soluble in strong mineral acids.
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 95.8% (114 of 119) of all reports.
Not Classified
Aggregated GHS information provided per 119 reports by companies from 3 notifications to the ECHA C&L Inventory.
Gefahrenhinweise
Regulatory Information
Chemical: Praseodymium oxide (Pr2O3)
Praseodymium oxide (Pr2O3) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Praseodymium oxide (Pr2O3) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 21-04-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/22277
Hazards SummaryPraseodymium oxide (Pr2O3) oxidizes to Pr6O11 when heated in air. [Merck Index] See Praseodymium. See RARE EARTH METALS and linked occupational diseases.
Hazard Classes and CategoriesNot Classified
Sicherheit und Schutzausrüstung
Protective Action Criteria (PAC)
15 [mg/m3]
170 [mg/m3]
990 [mg/m3]
Toxikologische Informationen
Adverse EffectsFibrogenic - Inducing tissue injury and fibrosis (scarring).
Chemie und Industrie
Verwendung und Herstellung
Uses
Used as a pigment in glass and ceramics and as a laboratory reagent; [Hawley]
Glass Manufacturing [Category: Industry]
U.S. Production2023: <50,000 lb
Consumer UsesPigment
Industry UsesCorrosion inhibitor
General Manufacturing Information
Miscellaneous Manufacturing
Praseodymium oxide: ACTIVE
Praseodymium oxide (Pr2O3): ACTIVE
Anwendungen
VerwendenPraseodymium(III) oxide is used as a pigment in glass, optic and ceramic industries. Praseodymium-doped glass called didymium glass is used in welding goggles, since it blocks infra-red radiation. Further, it is used as a dielectric in combination with silicon.
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