Hafnium tetrahydroxide

CAS 12027-05-3

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

H₈HfO₄250.6 g/mol

no molecular structure to draw

US productionCBI

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

Import volumeZero

Top sourceNo public record

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.

Where It Comes From

EPA reports by year

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

EPA-registered manufacturers (1)

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

Ati

Why It Matters

Sectors

Metals & Mining

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

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

Chemical Identity

CAS12027-05-3

PubChem CID82817

DTXSIDDTXSID20893173

FormulaH8HfO4

Mol. Weight250.55 g/mol

SMILESO.O.O.O.[Hf]

Data Sources

EPA CompTox (DSSTox) · DTXSID20893173Retrieved 2026-04-06
PubChem · compound 82817Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

Hafnium tetrahydroxide (CAS 12027-05-3) https://chemicalindependence.com/chemical/12027-05-3/ EPA CompTox (DSSTox): DTXSID20893173. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID20893173 PubChem: 82817. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/82817 EPA Chemical Data Reporting: 12027-05-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12027-05-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting