Bentonite, acid-leached

CAS 70131-50-9

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$52M

Top sourceMexico 71%

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 380290 · narrow

EPA reports by year

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

These shares come from HS customs code 380290, which covers 3 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).

MX 71%MexicoDE 7%GermanyBR 5%BrazilCN 5%ChinaRS 3%Serbia

Japan
Vietnam
Dominican Republic
Belgium
Spain
South Korea
United Kingdom
Singapore
Turkey
Poland

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.

Ep Engineered Clays

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.

Wacker Chemical Corporation - Headquarters

EPA-registered importers (6)

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

Basf Se · DE Germany

Clariant International · CH Switzerland

Basf

Clariant

Dow Chemical

Show all 6

M Chemical

Why It Matters

Sectors

Paints & CoatingsCore Chemicals

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.

•Viscosity modifiers in Paint and Coating ManufacturingProcessing as a reactant
•Catalyst in Petrochemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS70131-50-9

PubChem CIDNot recorded

DTXSIDDTXSID8028977

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID8028977Retrieved 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

Bentonite, acid-leached (CAS 70131-50-9) https://chemicalindependence.com/chemical/70131-50-9/ EPA CompTox (DSSTox): DTXSID8028977. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8028977 EPA Chemical Data Reporting: 70131-50-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 70131-50-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 380290 for CAS 70131-50-9. Reporting year: 2024. https://usatrade.census.gov/