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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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

FSL

Oxidizing solids
Inorganic peroxides
Hazardous rank I
1st oxidizing solid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

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)
Solar assisted methanothermal reduction of barium oxide for the co-production of barium and syngas
Bhosale RR
International Journal of Energy Research, 45(6) (2020)
Barium peroxide nanoparticles: synthesis, characterization and their use for actuating the luminol chemiluminescence
Gomes R
Journal of Material Chemistry C, 8 (2014)
Combustion Synthesis of BaFe12O19 in an External Magnetic Field: Time-Resolved X-ray Diffraction (TRXRD) Studies
Affleck L
Advanced Materials, 12(18) (2000)
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