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288497

Sigma-Aldrich

Barium oxide

97%

Synonyme(s) :

Barium monoxide

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About This Item

Formule linéaire :
BaO
Numéro CAS:
1304-28-5
Poids moléculaire :
153.33
Numéro CE :
215-127-9
Numéro MDL:
MFCD00003453
Code UNSPSC :
12352303
ID de substance PubChem :
24857344
Nomenclature NACRES :
NA.23

Niveau de qualité

200

Pureté

97%

Forme

powder

Pertinence de la réaction

reagent type: catalyst
core: barium

Impuretés

1-4% adsorbed H2O/CO2

Densité

5.72 g/mL at 25 °C (lit.)

Chaîne SMILES 

O=[Ba]

InChI

1S/Ba.O

Clé InChI

QVQLCTNNEUAWMS-UHFFFAOYSA-N

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Description générale

Barium oxide, also known as barium(II) oxide, is a white or off-white fine powder with a melting point exceeding 1,800 °C. It is a highly stable compound with a high melting point and good chemical resistance, making it suitable for use in a wide range of applications. There are several methods to produce barium oxide including the thermal decomposition of barium carbonate and the electrolysis of barium chloride.

Application

Barium oxide is used in a variety of applications. It is used as a raw material in the production of ceramics, such as glazes and ceramic pigments. It is used as a refractory material in the production of furnace linings and high-temperature applications. It is used as a fluxing agent in the production of glass, helping to lower the melting point and improve the clarity of glass. It is used as a catalyst in the production of polyethylene and other polymers. It is often used as a starting material to produce other barium compounds or dope semiconductors.

Caractéristiques et avantages

Used in the synthesis of the high-κ material BST (barium strontium titanate). Used in the study of NOX storage.

Pictogrammes

Skull and crossbonesCorrosion
GHS06,GHS05

Mention d'avertissement

Danger

Mentions de danger

H301,H314,H332

Classification des risques

Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Eye Dam. 1 - Skin Corr. 1B

Code de la classe de stockage

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificats d'analyse (COA)

Lot/Batch Number
0000399173
0000364667
0000364668
0000310219
0000364668

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Sonia Kudłacik-Kramarczyk et al.
Materials (Basel, Switzerland), 13(15) (2020-07-29)
Barium titanate is a ferroelectric perovskite with unique electric properties; therefore, it is widely applied in the fabrication of inorganic coatings or thin films, capacitors, or in the production of devices for energy storage and conversion. This paper describes the
Justin I Schwartz et al.
Acta odontologica Scandinavica, 62(2), 102-106 (2004-06-17)
Three UEDMA/TEGDMA (50:50 by weight) based dental composites were made, each with filler loadings of 53 vol.%. The three composites contained silane-treated filler particles with average particle diameters of 1.5, 3.0, or 10.0 microm. Twelve specimens per composite were mounted
Shunyi Li et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 23(33), 334202-334202 (2011-08-05)
The electrical properties of (Ba, Sr)TiO(3) (BST) thin films are studied using different combinations of Pt and tin-doped indium oxide (In(2)O(3):Sn, ITO) as electrode material. With Pt as bottom and top electrode the films show insulating behaviour with a low
Lei Yang et al.
Nature communications, 2, 357-357 (2011-06-23)
The existing Ni-yttria-stabilized zirconia anodes in solid oxide fuel cells (SOFCs) perform poorly in carbon-containing fuels because of coking and deactivation at desired operating temperatures. Here we report a new anode with nanostructured barium oxide/nickel (BaO/Ni) interfaces for low-cost SOFCs
Ozlem Gurbuz et al.
Gerodontology, 29(2), e710-e714 (2011-10-01)
The purpose of the study was to determine the effect of different forms and concentrations (2.5, 3, 4, 5% by volume) of glass fibres (chopped strand mat, continuous and woven) on fatigue resistance of acrylic denture base resin. The fatigue
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