288497
Barium oxide
97%
Synonym(s):
Barium monoxide
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About This Item
Linear Formula:
BaO
CAS Number:
Molecular Weight:
153.33
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
215-127-9
MDL number:
InChI key
QVQLCTNNEUAWMS-UHFFFAOYSA-N
InChI
1S/Ba.O
SMILES string
O=[Ba]
assay
97%
form
powder
reaction suitability
reagent type: catalyst
core: barium
impurities
1-4% adsorbed H2O/CO2
density
5.72 g/mL at 25 °C (lit.)
Quality Level
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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.
Features and Benefits
Used in the synthesis of the high-κ material BST (barium strontium titanate). Used in the study of NOX storage.
General description
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.
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Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Eye Dam. 1 - Skin Corr. 1B
Storage Class
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Regulatory Information
危险化学品
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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
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
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
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
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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