Bismuth trioxide
- Iupac Name:oxo(oxobismuthanyloxy)bismuthane
- CAS No.: 1304-76-3
- Molecular Weight:465.95896
- Modify Date.: 2022-11-07 02:13
- Introduction: In disinfectants, magnets, glass, rubber vulcanization; in fireproofing of papers and polymers; in catalysts.
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1. Names and Identifiers
- 1.1 Name
- Bismuth trioxide
- 1.2 Synonyms
B 18401 Bi2-O3 Bismite Bismuth (III) oxide NanoArc? BI-7300 Bismuth oxide Bismuth(III) Bismuth(III) oxide , powder,sphere (Bi2O3) Bismuth(III) oxide, Puratronic (metals basis) Bismuth(III) oxideBismuth trioxide bismuthousoxide Dibismuttrioxid MFCD00003462 NanoArc Bismuth Oxide Nanotek
- 1.3 CAS No.
- 1304-76-3
- 1.4 CID
- 14776
- 1.5 EINECS(EC#)
- 215-134-7;235-736-3
- 1.6 Molecular Formula
- Bi2O3 (isomer)
- 1.7 Inchi
- InChI=1S/Bi.3O/q+5;3*-2
- 1.8 InChkey
- KOCGCHBRHPOCBW-UHFFFAOYSA-N
- 1.9 Canonical Smiles
- [O-2].[O-2].[O-2].[Bi+5]
- 1.10 Isomers Smiles
- [Bi+5].[O-2].[O-2].[O-2]
2. Properties
- 2.1 Density
- 8.9
- 2.1 Melting point
- 825℃
- 2.1 Boiling point
- 1890 °C
- 2.1 Flash Point
- 1890°C
- 2.1 Precise Quality
- 465.945557
- 2.1 PSA
- 0.00000
- 2.1 logP
- -0.35640
- 2.1 Solubility
- 0.006g/l practically insoluble
- 2.2 Appearance
- Orange Yellow
- 2.3 Storage
- Ambient temperatures.
- 2.4 Chemical Properties
- Heavy, Yellow Powder
- 2.5 Color/Form
- Yellow
- 2.6 Odor
- Odorless
- 2.7 Water Solubility
- INSOLUBLE
- 2.8 Stability
- Stable.
- 2.9 StorageTemp
- Store at +5°C to +30°C.
3. Use and Manufacturing
- 3.1 Usage
- In disinfectants, magnets, glass, rubber vulcanization; in fireproofing of papers and polymers; in catalysts.
4. Safety and Handling
- 4.1 Hazard Codes
- Xi;
- 4.1 Risk Statements
- R36/37/38
- 4.1 Safety Statements
- S26;S36/37
- 4.1 RIDADR
- NONH for all modes of transport
- 4.1 WGK Germany
- 2
- 4.1 RTECS
- EB2984460
- 4.1 Toxicity
- LD50 orally in Rabbit: 5000 mg/kg
5. MSDS
2.Hazard identification
2.1 Classification of the substance or mixture
Not classified.
2.2 GHS label elements, including precautionary statements
Pictogram(s) | No symbol. |
Signal word | No signal word. |
Hazard statement(s) | none |
Precautionary statement(s) | |
Prevention | none |
Response | none |
Storage | none |
Disposal | none |
2.3 Other hazards which do not result in classification
none
6. Synthesis Route
1304-76-3Total: 44 Synthesis Route
8. Other Information
- 8.0 Chemical Properties
- Bismuth(III) oxide is the compound produced by heating the metal, or its carbonate, in air. It is definitely a basic oxide, dissolving readily in acid solutions, and unlike the arsenic or antimony compounds, not amphiprotic in solution, although it forms stoichiometric addition compounds on heating with oxides of a number of other metals. It exists in three modifications, white rhombohedral, yellow rhombohedral, and gray-black cubical. Bismuth(II) oxide, BiO, has been produced by heating the basic oxalate.
- 8.1 Physical properties
- Yellow monoclinic crystal or powder; density 8.90 g/cm3; melts at 817°C; vaporizes at 1,890°C; insoluble in water; soluble in acids.
- 8.2 Occurrence
- Bismuth 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.
- 8.3 Preparation
- Bismuth trioxide is commercially made from bismuth subnitrate. The latter is produced by dissolving bismuth in hot nitric acid. Addition of excess sodium hydroxide followed by continuous heating of the mixture precipitates bismuth trioxide as a heavy yellow powder. Also, the trioxide can be prepared by ignition of bismuth hydroxide.
- 8.4 General Description
- Bismuth (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.
- 8.5 Merck
- 14,1273
- 8.6 Chemical Properties
- Heavy, Yellow Powder
- 8.7 Uses
- In disinfectants, magnets, glass, rubber vulcanization; in fireproofing of papers and polymers; in catalysts.
- 8.8 Usage
- 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 generator. The alpha crystalline form of bismuth(III) oxide has p-type electronic conductivity.
- 8.9 Usage
- Used as Adhesives and sealant chemicals, flame retardants, pigments, propellants and blowing agents. It is also used as solvents. Other uses are in batteries, electrical and electronic products, explosive materials ink, toner, and colorant products, paints and coatings.
- 8.10 Usage
- Bismuth(III) oxide is used in solid-oxide fuel cells. It is also used in optical glasses, to replace lead oxide in whitewares, luxes, varistor formulations and ceramic capacitor formulations.
- 8.11 Usage
- Bismuth(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.
- 8.12 Usage
- It is used as a precursor to the preparation of other compounds of bismuth, chemical reagents. It has specialized uses in optical glass, flame-retardant paper, in glaze formulations as a substitute for lead oxides. It is used as solid electrolyte because of its high thermal expansion property. It is used in radio frequency shielding, compound for catheters and other medical tubing products.
- 8.13 Usage
- Used as an adhesive and sealant chemical, flame retardant, pigment, propellant and blowing agent. It is also used as a solvent. Other uses are in batteries, electrical and electronic products, explosive materials, ink, toner, and colorant products, paints and coatings.
9. Computational chemical data
- Molecular Weight: 465.95896g/mol
- Molecular Formula: Bi2O3
- Compound Is Canonicalized: True
- XLogP3-AA:
- Exact Mass: 465.94554
- Monoisotopic Mass: 465.94554
- Complexity: 34.2
- Rotatable Bond Count: 0
- Hydrogen Bond Donor Count: 0
- Hydrogen Bond Acceptor Count: 3
- Topological Polar Surface Area: 43.4
- Heavy Atom Count: 5
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count: 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Isotope Atom Count: 0
- Covalently-Bonded Unit Count: 1
- CACTVS Substructure Key Fingerprint: AAADcQAAMAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
10. Question & Answer
-
Metal oxides are basic in nature. There fore,the oxides of Bi are basic compound.The oxidation number of Bi in Bi2O3 is +3 and the oxidation number of Bi in Bi2O5 is +5. Higher the oxidation number of the metallic element lower the basicity of the compound. Hence,Bi2O3 is more basic than Bi2O5.
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