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1.01740

Sigma-Aldrich

Barium peroxide

(anhydrous, heavy), Technipur®

Synonym(s):

Barium binoxide, Barium dioxide, Barium superoxide

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About This Item

Empirical Formula (Hill Notation):
BaO2
CAS Number:
1304-29-6
Molecular Weight:
169.33
MDL number:
MFCD00003454
UNSPSC Code:
12352303
NACRES:
NA.21

Quality Level

200

pH

12 (20 °C, 10 g/L in H2O, slurry)

mp

450 °C

density

4.96 g/cm3 at 20 °C

SMILES string

[Ba++].[O-][O-]

InChI

1S/Ba.O2/c;1-2/q+2;-2

InChI key

ZJRXSAYFZMGQFP-UHFFFAOYSA-N

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General description

Barium peroxide (BaO2) is commonly used as a strong oxidizing agent in chemical industries due to its high reactivity and high storage stability under inert conditions. It is also used in fireworks because it produces a bright green color when ignited.

Application

Barium peroxide can also be used in the synthesis of hexagonal barium ferrite magnets (BaFe12O19) by SHS reaction (self-propagating high-temperature synthesis) in the presence of Fe and Fe2O3. Barium ferrite magnetic components are the most commonly used in a wide range of products, from televisions and computer monitors to kitchen cabinet magnetic clasps.

BaO2 can also be used as a:
  • Bleaching agent in industrial bleach applications.
  • Catalyst to start an aluminothermic reaction.
  • Oxidizer in various pyrotechnic mixtures.
  • Green flare in tracer ammunition.

It can also find application in various other fields such as CO2 adsorption, disinfection, luminol-driven chemiluminescence, and wastewater treatment.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Ox. Sol. 2 - Skin Corr. 1B

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Hydrogen Peroxide
Kirk-Othmer Encyclopedia of Chemical Technology (2001)
Binary and ternary pyrotechnic systems of Mn and/or Mo and BaO2 and/or SrO2: Part 2. Combustion studies
Drennan RL
Thermochimica Acta, 208, 223-246 (1992)

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