Kaolinite (Al2(OH)4(Si2O5))

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

Molecular structure of 1318-74-7
US ProductionCBI
Import Value$26M
Top SourceBrazil 76%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 250700 · narrow

These shares come from HS customs code 250700, which covers 3 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
BR 76%BrazilGB 10%United KingdomDE 3%GermanyBG 2%BulgariaNZ 2%New Zealand
EPA-registered importers (2)
Harbisonwalker International
Johnson Matthey Holdings

Why It Matters

Sectors
EnergyWaterConstructionMetals & MiningCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • Intermediate in Utilities (90%)Processing as a reactant
  • Adsorbents and absorbents in Other (5%)Use—non-incorporative activities

Vendor Pricing

$0.23/gA2B Chem LLC
CountryUnited States
Pack$116.00 / 500 g
PurityNo data available
Vendors5 available

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

4 more vendors
VendorCountry$/gPackPurity
Aaron Chemicals LLCHong Kong$0.24500 g
Angene ChemicalChina Hong Kong$0.25500 g
AA BLOCKSUnited States$0.30500 g
AK Scientific, Inc.United States$0.43500 g

Chemical Identity

CAS1318-74-7
PubChem CID71300855
DTXSIDDTXSID70892217
FormulaAl2H4O9Si2
Mol. Weight258.16 g/mol
SMILES[OH-].[OH-].[OH-].[OH-].[O-][Si](=O)O[Si](=O)[O-].[Al+3].[Al+3]

Data Sources

DTXSID708922172026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

713008552026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/71300855/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/71300855.json

1318-74-72026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 1318-74-72026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv