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1304-28-5 - Barium oxide, tech. 90% - 12193 - Alfa Aesar

12193 Barium oxide, tech. 90%

CAS Number
1304-28-5
Synonyms

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Barium oxide, tech. 90%

MDL
MFCD00003453
EINECS
215-127-9

Chemical Properties

Formula
BaO
Formula Weight
153.33
Form
Powder
Melting point
1923°
Density
5.7
Refractive Index
1.98
Sensitivity
Moisture Sensitive
Solubility
Sparingly soluble in water. Soluble in ethanol, dilute mineral acids and alkali.

Applications

It is used in cathode ray tubes, crown glass, and catalysts. It is used for the adsorption NO and NO<sub>2</sub>. It also plays an important role for NO<sub>2</sub> storage and reduction. It act as an efficient ethoxylation catalyst.

Notes

Hygroscopic. Absorbs carbon dioxide from the air, forming barium carbonate. Incompatible with acids, acid chlorides, acid anhydrides, reducing agents, moisture, hydrogen sulfide, and hydroxylamine.

Literature References

Droubay, T. C.; Kong, L.; Chambers, S. A.; Hess, W. P. Work function reduction by BaO: Growth of crystalline barium oxide on Ag(001) and Ag(111) surfaces. Surf. Sci. 2015, 632, 201-206.

Rani, M.; Sakurai, H.; Ahmad, J. Magnetic properties of Ba2CrO4 with honeycomb layers. Physica B: Condensed Matter 2015, 456, 182- 184.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H332

Harmful if swallowed. Harmful if inhaled.

Precautionary Statements: P261-P264-P270-P271-P304+P340-P301+P312-P312-P330-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,986
Hazard Class
6.1
Packing Group
III
Harmonized Tariff Code
2816.40
TSCA
Yes

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