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Merck
CN

554847

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
NACRES:
NA.23
PubChem Substance ID:
24879435
UNSPSC Code:
12352303
EC Number:
215-127-9
MDL number:
MFCD00003453

Key Documents

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InChI key

QVQLCTNNEUAWMS-UHFFFAOYSA-N

InChI

1S/Ba.O

SMILES string

O=[Ba]

assay

99.99% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: barium

density

5.72 g/mL at 25 °C (lit.)

Quality Level

200

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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.

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.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

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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Certificates of Analysis (COA)

Lot/Batch Number
0000486812
0000486812
0000472643
0000472643
0000472635

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