Bismuth oxide (Bi2O3)
Basic information
- CAS
1304-76-3- Standard SMILES
[O]=[Bi][O][Bi]=[O]- InChIKey
WMWLMWRWZQELOS-UHFFFAOYSA-N- Molecular formula
- Bi2O3
- Average molar mass
- 465.959 g/mol
- Monoisotopic mass
- 465.94554
Names & identifiers
- Preferred name
- Bismuth oxide (Bi2O3)
- IUPAC
- oxo(oxobismuthanyloxy)bismuthane
- English name
- Bismuth(III) Oxide
- Molecular formula
- Bi2O3
- Molecular weight
- 465.96
Names & synonyms
Bismuth oxide (Bi2O3)DTXSID8046537DTXCID6026537RefChem:1204281304-76-3Dibismuth trioxideBismutum-oxydatumWimut(III)-oxidBismuth(3+) oxideBismuth oxide (BiO1.5)Bismuth sesquioxide (Bi2O3)oxo(oxobismuthanyloxy)bismuthane
Show more names
BISMUTH OXIDEBISMUTH TRIOXIDEBISMUTH(III) OXIDEBismiteBismuth(III) oxide,99.9%Bi2-O3c.i.77160
Dibismoxane-1,3-dioneC.I. 77160NCGC00166095-01EINECS 215-134-7Bismuth Oxide PowderBismuth trioxide 99.5%UNII-A6I4E79QF1orb1705314
Database identifiers
- CAS
1304-76-3- PubChem CID
- 14776
- DTXSID
DTXSID8046537- EC Number
- 215-134-7
Properties
Computed structural properties
- Topological polar surface area
- 43.4 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 34.2
Experimental & physicochemical properties
Chemical ClassesMetals -> Metals, Inorganic Compounds
Physical Description
Dry Powder; Other Solid; CBI
Yellow odorless solid; [Merck Index] Insoluble; [MSDSonline]
Physicochemical properties
- Melting point
- 825 °C · 825 °C
- Boiling point
- 1890 °C · 1890°C
- Density
- 8.9 · 8.9
- bulk density
- 1000 kg/m3 · 1000kg/m3
- Flash point
- 1890 °C · 1890°C
- storage temp.
- 5 °C · Store at +5°C to +30°C.
- solubility
- 0.006 g/l · 0.006g/l practically insoluble
- form
- powder
- color
- Yellow
- Specific Gravity
- 8.9 · 8.9
- Odor
- Odorless
- Water Solubility
- INSOLUBLE
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 90.7% (410 of 452) of all reports.
Not Classified
Aggregated GHS information provided per 452 reports by companies from 9 notifications to the ECHA C&L Inventory.
Danger
H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
P260, P264, P270, P308+P316, P319, P321, P405, and P501 (click each P-code to see the statement)
Hazard information
Regulatory Information
Chemical: Bismuth oxide (Bi2O3)
Bismuth oxide (Bi2O3) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Bismuth oxide (Bi2O3) 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)
REACH registered substance: Dibismuth trioxide (EC: 215-134-7)
Bismuth oxide (Bi2O3): Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryAn irritant; [MSDSonline] See Bismuth.
Hazard Classes and Categories
Not Classified
Specific target organ toxicity - Single exposure - Category 1 (nervous system, kidney, articulation of the bone)
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 2
- tsca
- TSCA listed
- rtecs
- EB2984460
- hs_code
- 2825 90 85
Chemistry & industry
Uses & manufacturing
Uses
Used in disinfectants, magnets, polymers, catalysts, and glass; Also used in rubber vulcanization and paper fireproofing; [Merck Index]
Pulp and Paper Processing [Category: Industry]
U.S. Production2023: 550,000 - <1,000,000 lb
Consumer UsesPigment
Industry UsesX-ray absorber
General Manufacturing Information
Transportation Equipment Manufacturing
Bismuth oxide (Bi2O3): ACTIVE
Applications
OccurrenceBismuth trioxide occurs in nature as mineral bismite. The oxide is used in fireproofing of papers and polymers; in enameling cast iron ceramic; and in disinfectants.
UsesIn disinfectants, magnets, glass, rubber vulcanization; in fireproofing of papers and polymers; in catalysts.
UsesBismuth(III) oxide is used in the preparation of BiFeO3perovskite nanoparticles. It finds use in disinfectants, magnets, glass, rubber, vulcanization, fireproofing papers and polymers and catalysts. Bismuth trioxide brings about the "dragon's eggs" effect in fireworks, as a replacement of red lead. Bismuth(III) compounds are attractive reagents and catalysts in organic synthesis because of their low cost and ease of handling. Bismuth trioxide nanoparticles also play an important role in high energy gas generators. The alpha crystalline form of bismuth(III) oxide has p-type electronic conductivity.
General DescriptionBismuth (III) oxide is a yellow, monoclinic crystalline powder. It is insoluble in water and hydroxide solutions but dissolves in acids to form bismuth (III) salts. It can be prepared by heating bismuth in air or by heating hydroxides, carbonates or nitrates of bismuth.
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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