Tungsten hexafluoride

CAS 7783-82-6

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$43M

Top sourceChina 35%

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 282619 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 282619, which covers 35 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).

CN 35%ChinaDE 25%GermanyJP 21%JapanIN 10%IndiaTW 6%Taiwan

Singapore
United Kingdom
South Korea
South Africa
Liechtenstein
Switzerland
Russia
Netherlands
Italy
Belgium
Mexico
Indonesia
Hong Kong

EPA-registered manufacturers (3)

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

Nippon Sanso Holdings · JP Japan

Advance Research Chemicals

Matheson Tri-Gas

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Emd Holding

EPA-registered importers (1)

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

Resonac America

Why It Matters

Sectors

EnergyElectronics

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 2 sectors as 2 functional roles.

•Semiconductor and photovoltaic agent in Computer and Electronic Product Manufacturing (100%)Processing—incorporation into article
•Etching agent in Computer and Electronic Product Manufacturing (100%)Use—non-incorporative activities
•Semiconductor and photovoltaic agent in Industrial Gas ManufacturingUse—non-incorporative activities

Chemical Identity

CAS7783-82-6

PubChem CID522684

DTXSIDDTXSID80893770

FormulaF6W

Mol. Weight297.83 g/mol

SMILESF[W](F)(F)(F)(F)F

Data Sources

EPA CompTox (DSSTox) · DTXSID80893770Retrieved 2026-04-06
PubChem · compound 522684Retrieved 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

Tungsten hexafluoride (CAS 7783-82-6) https://chemicalindependence.com/chemical/7783-82-6/ EPA CompTox (DSSTox): DTXSID80893770. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID80893770 PubChem: 522684. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/522684 EPA Chemical Data Reporting: 7783-82-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7783-82-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282619 for CAS 7783-82-6. Reporting year: 2024. https://usatrade.census.gov/