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Barium oxide

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Barium oxide molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 4 grades and pack sizes of Barium oxide (CAS 1304-28-5). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS1304-28-5
Molecular formulaBaO
Molecular weight153.33 g/mol
IUPAC nameoxobarium
Synonymsoxobarium · Baryta · Barium monoxide · Calcined baryta · Barium protoxide · Barium oxide (BaO)
Safety & Hazards (GHS) Danger
Corrosive Corrosive Irritant Irritant
  • H314 Causes severe skin burns and eye damage
  • H332 Harmful if inhaled

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma BARIUM OXIDE, 97% 288497-250G
288497-50G		 Request Quote
Sigma BARIUM OXIDE, 99.99% METALS BASIS 554847-25G
554847-5G		 Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.