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Hexafluorophosphoric acid

CAS 16940-81-1

Phosphate(1-), hexafluoro-, hydrogen (1:1)

Molecular structure of 16940-81-1
1 H⁺
US productionNot reported
Import value, 2024$66M
Top sourceChina 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 281119 · basket

These shares come from HS customs code 281119, which covers 30 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 46%ChinaDE 17%GermanyMY 12%MalaysiaKR 5%South KoreaTW 5%Taiwan

Why It Matters

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

Chemical Identity

CAS16940-81-1
PubChem CIDNot recorded
DTXSIDDTXSID40884947
FormulaF6HP
Mol. Weight145.972 g/mol
SMILES[H+].F[P-](F)(F)(F)(F)F

Data Sources

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Brief citations

Hexafluorophosphoric acid (CAS 16940-81-1) https://chemicalindependence.com/chemical/16940-81-1/ EPA TSCA Inventory: CAS 16940-81-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 281119 for CAS 16940-81-1. Reporting year: 2024. https://usatrade.census.gov/