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44440 Barium oxide, 99.5% (metals basis excluding Sr), Sr <500ppm

CAS-Nummer
1304-28-5
Synonyme

Stock No. Größe Preis ($) Menge Verfügbarkeit
44440-14 25g 172,00
44440-22 100g 619,00
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Barium oxide, 99.5% (metals basis excluding Sr), Sr <500ppm

MDL
MFCD00003453
EINECS
215-127-9

Chemische Eigenschaften

Formel
BaO
Molmasse
153.33
Form
Powder
Schmelzpunkt
1923°
Dichte
5.7
Brechungsindex
1.98
Storage & Sensitivity
Ambient temperatures.
Löslichkeit
Sparingly soluble in water. Soluble in ethanol, dilute mineral acids and alkali.

Anwendungen

Barium oxide is used in cathode ray tubes, crown glass, and catalysts. It is used for the adsorption NO and NO2. It also plays an important role for NO2 storage and reduction. It acts as an efficient ethoxylation catalyst.

Bemerkungen

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

Literaturverweise

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 Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H302-H332

Harmful if swallowed. Harmful if inhaled.

Sicherheitshinweise: P261-P264-P270-P304+P340-P301+P312a-P501a

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

Weitere Referenzen

Merck
14,986
Gefahrenklasse
6.1
Verpackungsgruppe
III
Harmonized Tariff Code
2816.40
TSCA
Yes

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