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Silica gel

CAS 63231-67-4

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

Molecular structure of 63231-67-4
US productionCBI
Import value, 2024$341M
Top sourceChina 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 281122 · narrow

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

These shares come from HS customs code 281122, which covers 6 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 42%ChinaJP 16%JapanDE 16%GermanyIT 4%ItalyIN 3%India
EPA-registered manufacturers (1)
Imerys
Domestic parents -- activity not disclosed (1)
Wacker Chemical Corporation - Headquarters
EPA-registered importers (4)
Basf Se · DE Germany
Basf
P&G
The Sherwin Williams

Why It Matters

Sectors
ElectronicsTransportationConstructionMetals & MiningTextilesConsumer ProductsPaints & CoatingsPaper & PrintingCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 11 sectors as 7 functional roles.

  • •Solids separation (precipitating) agent, not otherwise specified in Mining (except Oil and Gas) and support activities (100%)Processing—repackaging
  • •Surface modifier in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Thickening agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Filler in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Anti-caking agent in Machinery ManufacturingProcessing—incorporation into article
  • •Thickening agent in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Anti-caking agent in Transportation Equipment ManufacturingProcessing—incorporation into article
  • •Surface modifier in Wood Product ManufacturingProcessing—incorporation into article
  • •Anti-caking agent in Electrical Equipment, Appliance, and Component ManufacturingProcessing—incorporation into article
  • •Surface modifier in Furniture and Related Product ManufacturingProcessing—incorporation into article
  • •Surface modifier in ConstructionProcessing—incorporation into article
  • •Defoamer in Paper ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Impregnation agent in ConstructionProcessing—incorporation into formulation, mixture, or reaction product
  • •Defoamer in Textiles, apparel, and leather manufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Filler in Transportation Equipment ManufacturingProcessing—incorporation into article

Chemical Identity

CAS63231-67-4
PubChem CIDNot recorded
DTXSIDDTXSID6034891
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Silica gel (CAS 63231-67-4) https://chemicalindependence.com/chemical/63231-67-4/ EPA CompTox (DSSTox): DTXSID6034891. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6034891 EPA Chemical Data Reporting: 63231-67-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 63231-67-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 281122 for CAS 63231-67-4. Reporting year: 2024. https://usatrade.census.gov/