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Magnesium silicate

CAS 1343-88-0

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

US productionCBI
Import value, 2024$21M
Top sourceMexico 25%

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 283990 · basket

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

These shares come from HS customs code 283990, which covers 20 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
MX 25%MexicoCA 17%CanadaDE 12%GermanyIT 12%ItalyJP 9%Japan
EPA-registered manufacturers (3)
Basf Se · DE Germany
Basf
Cleveland-Cliffs
EPA-registered importers (1)
Basf Se · DE Germany

Why It Matters

Sectors
ElectronicsTransportationConstructionMetals & MiningPlastics & RubberConsumer ProductsPaper & PrintingCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 7 sectors as 4 functional roles.

  • •Catalyst in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Absorbent in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Binder in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Absorbent in ConstructionProcessing—incorporation into formulation, mixture, or reaction product
  • •Absorbent in Electrical Equipment, Appliance, and Component ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Absorbent in Furniture and Related Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Absorbent in Transportation Equipment ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Electrical Equipment, Appliance, and Component ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS1343-88-0
PubChem CID72941442
DTXSIDDTXSID6047658
FormulaMgO3Si
Mol. Weight100.39 g/mol
SMILES[O-2].[O-2].[O-2].[Mg+2].[Si+4]

Data Sources

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Brief citations

Magnesium silicate (CAS 1343-88-0) https://chemicalindependence.com/chemical/1343-88-0/ EPA CompTox (DSSTox): DTXSID6047658. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6047658 PubChem: 72941442. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/72941442 EPA Chemical Data Reporting: 1343-88-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1343-88-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283990 for CAS 1343-88-0. Reporting year: 2024. https://usatrade.census.gov/