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Bismuth oxide (Bi2O4)

CAS 12048-50-9

Used in 1 industrial sector tracked by the EPA.

Molecular structure of 12048-50-9
US production8.6K lb
Import volumeZero
Import dependency0%
Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 282590 · basket

EPA reports by year
2023
US production 8.6K lb · Imports Zero
2019
US production 87.5K lb · Imports Zero

HS customs code 282590 covers 34 tracked chemicals in total. US Census does not break out this chemical's share, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.

EPA-registered manufacturers (2)
Rio Tinto Plc · GB United Kingdom
Rio Tinto America

Why It Matters

Sectors
Metals & Mining
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Intermediate in Primary Metal Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS12048-50-9
PubChem CID131868916
DTXSIDDTXSID90893206
FormulaBi2O4
Mol. Weight481.958 g/mol
SMILESO=[Bi]O[Bi](=O)=O

Data Sources

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Brief citations

Bismuth oxide (Bi2O4) (CAS 12048-50-9) https://chemicalindependence.com/chemical/12048-50-9/ EPA CompTox (DSSTox): DTXSID90893206. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID90893206 PubChem: 131868916. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/131868916 EPA Chemical Data Reporting: 12048-50-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12048-50-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting