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Aluminum silicate

CAS 12141-46-7

Also registered as 11 other CAS numbers

12758-14-4 · 55012-98-1 · 167952-93-4 · 848952-50-1 · 1237627-97-2 · 1260223-11-7 · 1399049-88-7 · 1433820-22-4 · 2172796-02-8 · 2241363-26-6 · 2305669-95-6

Aluminum silicate chemical structure

Concern score

Not assessed — no hazard data yet.

Aluminum silicate in plain language

What it is

Also known as Aluminium silicate · Natural aluminum silicate · Aluminum oxide silicate (Al2O(SiO4)) · Aluminium oxide silicate · Aluminum oxide silicate · Kaolin, light or heavy

Show all 18 names

Silicic acid (H6SIO5), aluminum salt (1:2) · Aluminum oxide silicate (AlO0.5(SiO4)0.5) · Aluminum silicate (Al2SiO5) · Aluminum silicate oxide (Al2SiO5) · synthetic Aluminum silicate · Aluminum silicon oxide (Al2SiO5) · E-559 · Ins NO.559 · INS-559 · aluminum silicate (clay) · clay/micro-cel · clay/micro-cell

What it does

Used in consumer products as a colourant, an opacifier and an abrasive.

  • Colourant
  • Opacifier
  • Abrasive
  • Absorbent
  • Anti-caking agent
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Aluminum silicate appears in these published regulatory listings.

  • Inactive ingredient in US drugs

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USFDAinactive ingredient database4 entries — 2 administration routes
    • Route: ORAL; Dosage form: TABLET; Potency: 19.25 mgSource →
    • Route: ORAL; Dosage form: TABLET, COATED; Potency: 50 mgSource →
    • Route: ORAL; Dosage form: TABLET, EXTENDED RELEASE; Maximum daily exposure: 94 mgSource →
    • Route: TOPICAL; Dosage form: SYSTEM; Maximum daily exposure: 19 mgSource →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 326 composition records across product categories including Construction and building materials, Home maintenance, Vehicle. EPA CPDat classifies this chemical for functional uses including Abrasive, Absorbent, Dye.
    • EPA CPDat observed this chemical in 326 composition records across product categories including Construction and building materials, Home maintenance, Vehicle. EPA CPDat classifies this chemical for functional uses including Abrasive, Absorbent, Dye.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for Aluminum silicate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated april 3, 2017

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA Inactive Ingredient Database

    regulatory · updated 2026-01-09

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
Reference links (1)
Openfda substance

codexalimentarius.net

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Aluminum silicate in a product composition. These are source records, not Greenveil catalog products.

Source records

326

Named organisations

6

Construction and building materialsHome maintenanceVehicleSpecialty occupational productsRaw materialsConstruction

Typical roles

ColourantOpacifierAbrasiveAbsorbentAnti-caking agent
See products using Aluminum silicate →

Catalog

Found in these products

Their ingredient lists include Aluminum silicate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.