288497
Barium oxide
97%
Synonym(s):
Barium monoxide
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About This Item
Linear Formula:
BaO
CAS Number:
Molecular Weight:
153.33
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.23
Quality Level
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.)
SMILES string
O=[Ba]
InChI
1S/Ba.O
InChI key
QVQLCTNNEUAWMS-UHFFFAOYSA-N
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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.
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.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Eye Dam. 1 - Skin Corr. 1B
Storage Class Code
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
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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
I L Denry et al.
Journal of biomedical materials research, 63(1), 48-52 (2002-01-12)
The purpose of this study was to evaluate the effect of sodium content on the crystallization behavior of glass-ceramics in the system SiO(2)-MgO-CaO-Na(2)O-K(2)O-F. Five glass compositions were prepared with increasing sodium content. The compositions were melted at 1400 degrees C
Andreas Sternig et al.
Small (Weinheim an der Bergstrasse, Germany), 6(4), 582-588 (2009-12-24)
Uniformly sized and shaped nanoparticles are well suited for the quantitative characterization of optical-powder properties. For the first time, quantum yields related to photoluminescence emissions that originate from the photoexcitation of MgO nanocube corners and edges are measured. In addition
Takahito Kanie et al.
Dental materials journal, 21(1), 1-8 (2002-06-06)
This study examined the reinforcing effect of woven glass fibers on the relaxation modulus by three-point loading of denture base resin. Three sandwich-type flexure test specimens polymerized by heating were used, all 3 mm thick: glass fibers in compression (U
D J Harris et al.
Physical chemistry chemical physics : PCCP, 7(8), 1839-1844 (2005-04-21)
We have modelled the surface diffusion and growth of BaO and SrO both in the homoepitaxial and heteroepitaxial (BaO on SrO and SrO on BaO) cases. The diffusion proceeds most favourably by an exchange mechanism involving the surface layer. When
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