Bismuth oxide (Bi2O3)

CAS 1304-76-3

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$123M

Top sourceBrazil 32%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. 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 Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 282590, which covers 34 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

BR 32%BrazilTR 15%TurkeyCN 9%ChinaVN 8%VietnamKR 8%South Korea

Ireland
Mexico
Spain
Belgium
Switzerland
Trinidad and Tobago
Hong Kong

EPA-registered importers (3)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Basf Se · DE Germany

5N Plus

Basf

Why It Matters

Sectors

TransportationPlastics & RubberPaints & CoatingsCore Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 4 sectors as 3 functional roles.

•X-ray absorber in Plastics Material and Resin Manufacturing (0%)Processing—incorporation into article
•Pigment in Transportation Equipment ManufacturingProcessing—incorporation into article
•Pigment in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Catalyst in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.14/gAK Scientific Specialized

CountryUnited States

Pack$145.00 / 1 kg

Purity98%

Vendors6 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

5 more vendors

Vendor	Country	$/g	Pack	Purity
Fluorochem UK	United Kingdom	$0.17	100 g	99.5%
AK Scientific, Inc.	United States	$0.19	1 kg	99.9%
Sigma-Aldrich (Rush Stock)	Germany	$0.66	500 g	98%
Sigma-Aldrich	Germany	$0.66	500 g	98%
Combi-Blocks, Inc.	United States	$1.25	100 g	98%

Chemical Identity

CAS1304-76-3

PubChem CID14776

DTXSIDDTXSID8046537

FormulaBi2O3

Mol. Weight465.959 g/mol

SMILESO=[Bi]O[Bi]=O

Data Sources

EPA CompTox (DSSTox) · DTXSID8046537Retrieved 2026-04-06
PubChem · compound 14776Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Bismuth oxide (Bi2O3) (CAS 1304-76-3) https://chemicalindependence.com/chemical/1304-76-3/ EPA CompTox (DSSTox): DTXSID8046537. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8046537 PubChem: 14776. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/14776 EPA Chemical Data Reporting: 1304-76-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1304-76-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282590 for CAS 1304-76-3. Reporting year: 2024. https://usatrade.census.gov/