Bismuth(III) oxide

Bismuth(III) oxide
Names
	IUPAC names Bismuth trioxide; Bismuth(III) oxide; Bismite (mineral)
	Other names Bismuth oxide, bismuth sesquioxide
Identifiers
CAS Number	1304-76-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	14093 ;
ECHA InfoCard	100.013.759
EC Number	215-134-7;
PubChem CID	14776;
UNII	A6I4E79QF1 ;
CompTox Dashboard (EPA)	DTXSID8046537 ;
	InChI InChI=1S/2Bi.3O Key: WMWLMWRWZQELOS-UHFFFAOYSA-N ; InChI=1/2Bi.3O/rBi2O3/c3-1-5-2-4 Key: WMWLMWRWZQELOS-JOBWJGIYAA;
	SMILES O=[Bi]O[Bi]=O;
Properties
Chemical formula	Bi2O3
Molar mass	465.958 g·mol−1
Appearance	yellow crystals or powder
Odor	odorless
Density	8.90 g/cm3, solid
Melting point	817 °C (1,503 °F; 1,090 K)
Boiling point	1,890 °C (3,430 °F; 2,160 K)
Solubility in water	insoluble
Solubility	soluble in acids
Magnetic susceptibility (χ)	-83.0·10−6 cm3/mol
Structure
Crystal structure	monoclinic, mP20, ; Space group P21/c (No 14)
Coordination geometry	pseudo-octahedral
Hazards
NFPA 704 (fire diamond)	1 0 0
Flash point	Non-flammable
Safety data sheet (SDS)	ThermoFisher SDS
Related compounds
Other anions	Bismuth trisulfide; Bismuth selenide ; Bismuth telluride
Other cations	Dinitrogen trioxide; Phosphorus trioxide; Arsenic trioxide; Antimony trioxide
Supplementary data page
	Bismuth(III) oxide (data page)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Bismuth(III) oxide is a compound of bismuth, and a common starting point for bismuth chemistry. It is found naturally as the mineral bismite (monoclinic) and sphaerobismoite (tetragonal, much more rare), but it is usually obtained as a by-product of the smelting of copper and lead ores. Dibismuth trioxide is commonly used to produce the "Dragon's eggs" effect in fireworks, as a replacement of red lead.^[1]

^ ^a ^b Patnaik, Pradyot (2003). Handbook of Inorganic Chemical Compounds. McGraw-Hill. p. 243. ISBN 0-07-049439-8. Retrieved 2009-06-06.

[handbook-1] Patnaik, Pradyot (2003). Handbook of Inorganic Chemical Compounds. McGraw-Hill. p. 243. ISBN 0-07-049439-8. Retrieved 2009-06-06.

[1]

Names


IUPAC names Bismuth trioxide Bismuth(III) oxide Bismite (mineral)
Other names Bismuth oxide, bismuth sesquioxide
Identifiers
CAS Number	1304-76-3^Y
3D model (JSmol)	Interactive image
ChemSpider	14093^Y
ECHA InfoCard	100.013.759
EC Number	215-134-7
PubChem CID	14776
UNII	A6I4E79QF1^Y
CompTox Dashboard (EPA)	DTXSID8046537
InChI InChI=1S/2Bi.3O^Y Key: WMWLMWRWZQELOS-UHFFFAOYSA-N^Y InChI=1/2Bi.3O/rBi2O3/c3-1-5-2-4 Key: WMWLMWRWZQELOS-JOBWJGIYAA
SMILES O=[Bi]O[Bi]=O
Properties
Chemical formula	Bi₂O₃
Molar mass	465.958 g·mol⁻¹
Appearance	yellow crystals or powder
Odor	odorless
Density	8.90 g/cm³, solid
Melting point	817 °C (1,503 °F; 1,090 K)^[1]
Boiling point	1,890 °C (3,430 °F; 2,160 K)
Solubility in water	insoluble
Solubility	soluble in acids
Magnetic susceptibility (χ)	-83.0·10⁻⁶ cm³/mol
Structure
Crystal structure	monoclinic, mP20, Space group P2₁/c (No 14)
Coordination geometry	pseudo-octahedral
Hazards
NFPA 704 (fire diamond)	1 0 0
Flash point	Non-flammable
Safety data sheet (SDS)	ThermoFisher SDS
Related compounds
Other anions	Bismuth trisulfide Bismuth selenide Bismuth telluride
Other cations	Dinitrogen trioxide Phosphorus trioxide Arsenic trioxide Antimony trioxide
Supplementary data page
Bismuth(III) oxide (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references