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Sigma-Aldrich

Bismuth(III) oxide

ReagentPlus®, powder, 10 μm, 99.9% trace metals basis

Synonym(s):

Dibismuth trioxide

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About This Item

Empirical Formula (Hill Notation):
Bi2O3
CAS Number:
1304-76-3
Molecular Weight:
465.96
EC Number:
215-134-7
MDL number:
MFCD00003462
UNSPSC Code:
12352103
PubChem Substance ID:
24853412
NACRES:
NA.23

product line

ReagentPlus®

Assay

99.9% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: bismuth

particle size

10 μm

SMILES string

O=[Bi]O[Bi]=O

InChI

1S/2Bi.3O

InChI key

WMWLMWRWZQELOS-UHFFFAOYSA-N

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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.

Application

General applications of bismuth (III) oxide are:production of optical glasses with high indices of refraction, precursor in the production of other bismuth compounds.
Bismuth (III) oxide is suitable for dental materials to render them opaque to X-rays.
It is used for the synthesis of pure BiFeO3 perovskite nanoparticles, lead free piezoelectric 0.96(Bi0.5Na0.5)TiO3 - 0.04 BaTiO3.

Features and Benefits

Preparation of new stabilized, oxide ion-conducting, bismuth vanadate phases by a microwave assisted method, from V2O5, Bi2O3 and other solid oxides, was reported. These ceramics show promise in solid oxide fuel cells, water-vapor electrolyzers and oxygen sensors.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

nwg

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Direct mechanosynthesis of pure BiFeO 3 perovskite nanoparticles: reaction mechanism.
Perejon A, et al.
Journal of Material Chemistry C, 1(22), 3551-3562 (2013)
L M Formosa et al.
International endodontic journal, 45(4), 326-336 (2011-11-03)
To investigate the physical properties of tricalcium silicate (TCS) with and without the addition of a radiopacifier and compare them with that of Portland cement (PC) and radiopaque PC in an mineral trioxide aggregate-like system. Tricalcium silicate, PC and radiopacified
Luonothar Antunes Schmitt Dreger et al.
Journal of endodontics, 38(3), 324-329 (2012-02-22)
Mineral trioxide aggregate (MTA) and Portland cement have been shown to be bioactive because of their ability to produce biologically compatible carbonated apatite. This study analyzed the interaction of MTA and white Portland cement with dentin in vivo. Seventy-two human dentin
L M Formosa et al.
Dental materials : official publication of the Academy of Dental Materials, 28(5), 584-595 (2012-03-14)
Tricalcium silicate is the major constituent phase in mineral trioxide aggregate (MTA). It is thus postulated that pure tricalcium silicate can replace the Portland cement component of MTA. The aim of this research was to evaluate the microstructure and surface
S Sanghi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 83(1), 94-99 (2011-09-06)
Glasses with composition 20CdO·xBi(2)O(3)·(79.5-x)B(2)O(3) (15≤x≤35, x in mol%) containing 0.5 mol% of Er(3+) ions were prepared by melt-quench technique (1150°C in air). The amorphous nature of the glasses was confirmed by X-ray diffraction. The spectroscopic properties of the glasses were
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