Basic information
- CAS
12037-01-3- Standard SMILES
O.O.O.O.O.O.O.[Tb].[Tb].[Tb].[Tb]- InChIKey
HEQHIXXLFUMNDC-UHFFFAOYSA-N- Molecular formula
- H14O7Tb4
- Average molar mass
- 761.81 g/mol
- Monoisotopic mass
- 761.77537
Names & identifiers
- Preferred name
- Terbium oxide (Tb4O7)
- IUPAC
- terbium;heptahydrate
- English name
- Tetraterbium heptaoxide
- Molecular formula
- O7Tb4-2
- Molecular weight
- 747.7
Names & synonyms
Terbium oxide (Tb4O7)RefChem:891371DTXSID4027646912037-01-3EINECS 234-856-3terbium;heptahydrateO7Tb4Terbium(III, IV) OxideH14O7Tb4HEQHIXXLFUMNDC-UHFFFAOYSA-NUWZVBPNIJCKCMC-UHFFFAOYSA-NTerbium oxide
Show more names
TERBIUM(III,IV) OXIDETB OXIDEIV) oxideTerbium(IIITerbuim oxideTERBIUM PEROXIDETerbiuM(Ⅲ,Ⅳ) oxideoxygen(2-),terbiumTERBIUMOXIDE,POWDER
Database identifiers
- CAS
12037-01-3- PubChem CID
- 9853508
- EC Number
- 234-856-3
Properties
Computed structural properties
- Topological polar surface area
- 7 Ų
- Hydrogen bond donors
- 7
- Hydrogen bond acceptors
- 7
- Rotatable bonds
- 0
- Heavy atoms
- 11
- Formal charge
- 0
- Complexity
- 0
Experimental & physicochemical properties
Chemical ClassesMetals -> Rare Earth Metals
Physical DescriptionDark brown or black solid; [Merck Index] Dark brown hygroscopic powder; [Sigma-Aldrich MSDS]
Physicochemical properties
- Melting point
- 2340 °C · 2340°C
- Density
- 7.3 g/mL · 7.3 g/mL at 25 °C(lit.)
- storage temp.
- Inert atmosphere,Room Temperature
- form
- Powder
- Specific Gravity
- 6.27 · 6.27
- color
- brown to black
- Water Solubility
- insoluble
- Merck
- 14 · 14,9157
- InChI
- InChI=1S/7O.4Tb
- InChIKey
- UWZVBPNIJCKCMC-UHFFFAOYSA-N
- SMILES
- [Tb](=O)(O[Tb]=O)O[Tb](=O)O[Tb]=O
- CAS DataBase Reference
- 12037 · 12037-01-3(CAS DataBase Reference)
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (16 of 16) of all reports.
Not Classified
Aggregated GHS information provided per 16 reports by companies from 1 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory InformationREACH registered substance: Tetraterbium heptaoxide (EC: 234-856-3)
Hazards SummaryMay cause irritation; [Sigma-Aldrich MSDS] See Terbium. See RARE EARTH METALS and linked occupational diseases.
Hazard Classes and CategoriesNot Classified
Toxicology
Adverse EffectsFibrogenic - Inducing tissue injury and fibrosis (scarring).
Safety data
- PPE
- Eyeshields, Gloves, type N95 (US)
- wgk
- 3
- tsca
- TSCA listed
- hs_code
- 28469016
- Signal word
- Danger
- Symbol(GHS)
- GHS06
- safety_code
- 24/25
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H301-H315-H319
Chemistry & industry
Uses & manufacturing
General Manufacturing InformationTerbium oxide (Tb4O7): ACTIVE
Applications
UsesTerbium Oxide, also called Terbia, has important role as an activator for green phosphors used in color TV tubes. Meanwhile Terbium Oxide is also used in special lasers and as a dopant in solid-state devices. It is also frequently used as a dopant for crystalline solid-state devices and fuel cell materials. Terbium Oxide is one of the chief commercial Terbium compounds. Produced by heating the metal Oxalate,Terbium Oxide is then used in the preparation of other Terbium compounds.
Preparation methods
PreparationTerbium(III,IV) oxide Synthesis: Tetraterbium nitrate or terbium carbonate or terbium sulfate solution with sodium hydroxide to form terbium hydroxide precipitate, which is filtered and burned to obtain terbium oxide.4Tb(OH)3+0.5O2→Tb4O7+6H2OTb4O7 is most often produced by ignition of the oxalate at or the sulfate in air.
Upstream & downstream products
Upstream raw materials
Suppliers100 total
国药集团化学试剂有限公司86-21-63210123 · [email protected]
Related reactions
0 records
No reaction records under the current filter.
Compound notes
Loading…