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223891

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

Quality Level

200

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

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Certificates of Analysis (COA)

Lot/Batch Number
STBK7846
STBK7845
0000164224
STBK6685
0000154342

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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)
Vaidyanathan, B. et al.
Chemistry of Materials, 10, 3400-3400 (1998)
Rifath Sharmin et al.
Journal of the Air & Waste Management Association (1995), 62(9), 1032-1039 (2012-10-02)
Photocatalytic oxidation (PCO) is a promising technology for indoor air purification due to low operating cost, potentially long service life, and low maintenance. Ultraviolet light-emitting diode (UVLED) is a new concept in the field of PCO, which has several advantages
Arun Prakash Periasamy et al.
Talanta, 87, 15-23 (2011-11-22)
In this work, preparation and characterization of a novel nanocomposite containing bismuth oxide (Bi(2)O(3)) nanoparticles and multiwalled carbon nanotubes (MWCNTs) was presented. Powder X-ray diffraction (XRD) studies revealed that as-synthesized Bi(2)O(3) nanoparticles are crystalline and belong to α-phase with monoclinic
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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