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554847

Sigma-Aldrich

Barium oxide

99.99% trace metals basis

Synonym(s):

Baria, Barium monoxide

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About This Item

Linear Formula:
BaO
CAS Number:
1304-28-5
Molecular Weight:
153.33
EC Number:
215-127-9
MDL number:
MFCD00003453
UNSPSC Code:
12352303
PubChem Substance ID:
24879435
NACRES:
NA.23

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

Features and Benefits

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

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H301,H314,H332

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
The storage of nitrogen oxides on alumina-supported barium oxide
Cant NW and Patterson MJ
Catalysis Today, 73(3-4), 271-278 (2002)
The characterization of waste cathode-ray tube glass
Mear F, et al.
Waste Management (New York, N.Y.), 26(12), 1468-1476 (2006)
Barium oxide
Handbook of Inorganic Chemicals, 529, 77-94 (2003)
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