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Potassium persulfate

CAS 7727-21-1

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

Molecular structure of 7727-21-1
2 K⁺
US productionCBI
Import value, 2024$10M
Top sourceGermany 42%

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 283340 · narrow

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 283340, which covers 5 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 42%GermanyIN 34%IndiaCN 8%ChinaTW 7%TaiwanTR 4%Turkey
Domestic parents -- activity not disclosed (2)
Mitsubishi International Polymertrade
United Initiators

Why It Matters

Sectors
Plastics & RubberTextilesPaints & CoatingsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 5 sectors as 5 functional roles.

  • •Catalyst in Plastics Material and Resin ManufacturingProcessing as a reactant
  • •Oxidizing/reducing agents in Paint and Coating Manufacturing (100%)Processing as a reactant
  • •Catalyst in Paint and Coating Manufacturing (13%)Processing as a reactant
  • •Plasticizer in Plastics Product Manufacturing (0%)Processing as a reactant
  • •Bleaching agent in Textiles, apparel, and leather manufacturing (15%)Processing as a reactant
  • •Intermediate in All Other Chemical Product and Preparation Manufacturing (71%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.04/gA2B Chem LLC
CountryUnited States
Pack$19.00 / 500 g
Purity99%
Vendors7 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

6 more vendors
VendorCountry$/gPackPurity
AA BLOCKSUnited States$0.04500 g99%
AK Scientific, Inc.United States$0.081 kg99%
Sigma-Aldrich (Rush Stock)Germany$0.111 kg99%
Sigma-AldrichGermany$0.111 kg99%
Fluorochem UKUnited Kingdom$0.141 kg99%
Fluorochem EUGermany$1.1625 g99%

Chemical Identity

CAS7727-21-1
PubChem CID24412
DTXSIDDTXSID4029690
FormulaK2O8S2
Mol. Weight270.33 g/mol
SMILES[O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]

Data Sources

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Brief citations

Potassium persulfate (CAS 7727-21-1) https://chemicalindependence.com/chemical/7727-21-1/ EPA CompTox (DSSTox): DTXSID4029690. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4029690 PubChem: 24412. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/24412 EPA Chemical Data Reporting: 7727-21-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7727-21-1. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283340 for CAS 7727-21-1. Reporting year: 2024. https://usatrade.census.gov/