Potassium bisulfate

CAS 7646-93-7

Sulfuric acid, potassium salt (1:1)

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.

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

Customs basis: HS 310430 · exact

EPA reports by year

2023: US production Confidential · Imports Confidential

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.

Ravago Holdings America

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.

Biobest Group Nv · BE Belgium

Plant Products Holdings Usa

Tessenderlo Kerley

Why It Matters

Sectors

Agriculture

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

•Soil amendments (fertilizers) in Agriculture, Forestry, Fishing and Hunting (2%)Processing—repackaging

Chemical Identity

CAS7646-93-7

PubChem CIDNot recorded

DTXSIDDTXSID8047715

FormulaHKO4S

Mol. Weight136.16 g/mol

SMILES[K+].OS([O-])(=O)=O

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
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

Potassium bisulfate (CAS 7646-93-7) https://chemicalindependence.com/chemical/7646-93-7/ EPA TSCA Inventory: CAS 7646-93-7. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 7646-93-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7646-93-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting