554847

Sigma-Aldrich

Barium oxide

99.99% trace metals basis

Synonym(s):
Barium monoxide, Baria
Linear Formula:
BaO
CAS Number:
Molecular Weight:
153.33
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.99% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: barium

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 (BaO) is a white ionic crystal that has a non-flammable nature. It is a cubic structured compound that can be prepared by different methodologies, such as thermal decomposition of barium nitrate, and by heating barium carbonate with carbon black or tar.

Application

BaO can be used in a variety of applications such as:
  • network modifier in the development of cathode ray tubes
  • fabrication of glasses such as crown and borosilicate glasses
  • storage of nitrogen gas
  • preparation of biodiesel for internal combustion engines

Packaging

5, 25 g in glass bottle

Features and Benefits

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

Pictograms

CorrosionSkull and crossbones

Signal Word

Danger

Hazard Statements

hazcat

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 Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Modification in structural and optical properties of CeO2 doped BaO-B2O3 glasses
Singh GP and Singh DP
Journal of Molecular Structure, 1012(12), 137-140 (2012)
Accommodation of excess oxygen in group II monoxides
Middleburgh SC, et al.
Journal of the American Ceramic Society. American Ceramic Society, 96(1), 308-311 (2013)
Emission analysis of Azolla methyl ester with BaO nano additives for IC engine
Kannan D and Christraj W
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 40(10), 1234-1241 (2018)
Barium oxide
Handbook of Inorganic Chemicals, 529, 77-94 (2003)
The storage of nitrogen oxides on alumina-supported barium oxide
Cant NW and Patterson MJ
Catalysis Today, 73(3-4), 271-278 (2002)
Articles
Advanced Inorganic Materials for Solid State Lighting
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