Flag of the United StatesAmerican Chemical Independence

Barium tungstate (BaWO4)

CAS 7787-42-0

Tungstate (WO42-), barium (1:1), (T-4)-

Molecular structure of 7787-42-0
1 Ba²⁺
US productionNot reported
Import value, 2024$12M
Top sourceJapan 46%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 320650 · narrow

These shares come from HS customs code 320650, which covers 3 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 46%JapanPT 15%PortugalDE 13%GermanyIL 9%IsraelCN 6%China

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS7787-42-0
PubChem CIDNot recorded
DTXSIDDTXSID501014479
FormulaBaO4W
Mol. Weight385.16 g/mol
SMILES[Ba++].O=[W--](=O)(=O)=O

Data Sources

← Back to Dashboard

Brief citations

Barium tungstate (BaWO4) (CAS 7787-42-0) https://chemicalindependence.com/chemical/7787-42-0/ EPA TSCA Inventory: CAS 7787-42-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 320650 for CAS 7787-42-0. Reporting year: 2024. https://usatrade.census.gov/