Mineral Fillers & Pigments Available — Bulk Only

Magnesium Aluminum Silicate (Aluminum Magnesium Silicate)

CAS 1327-43-1 · Formula AlMgO4Si+ · MW 143.37 g/mol

A swelling clay that builds yield value and holds particles in suspension across waterborne systems. It is used as a rheology modifier, suspending agent, and thickener in coatings, personal care, and household products, and as an anticaking agent, opacifier, and absorbent.

Request SDS
CAS Number
1327-43-1
Formula
AlMgO4Si+
Molecular Weight
143.37 g/mol
Material Family
Mineral Fillers & Pigments
At a Glance
Material Family
Mineral Fillers & Pigments
Record Type
Pure compound
Primary Role
Color / Pigmentation · Viscosity Modification
Functional Roles
MAGNESIUM ALUMINUM SILICATE
ABSORBENTANTICAKINGOPACIFYINGVISCOSITY CONTROLLING
Applications & Use Cases
  • Rheology modifier: Thickens and imparts yield value to aqueous systems.
  • Suspending agent: Stabilizes pigments and actives against settling.
  • Anticaking: Free-flow agent for powders.
  • Absorbent/opacifier: Absorbent and opacifying filler in formulations.
Physical Properties
Solubility
Insoluble
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

Request SDS →
Chemical Identity
CAS Number
1327-43-1
Molecular Formula
AlMgO4Si+
Molecular Weight
143.37 g/mol
IUPAC Name
aluminum;magnesium;silicate
INCI Name
MAGNESIUM ALUMINUM SILICATE
PubChem CID
InChI Key
WMGSQTMJHBYJMQ-UHFFFAOYSA-N
Synonyms & Trade Names
Magnesium aluminum silicate Aluminii magnesii silicas Magnesium aluminium silicate MJ-2000 M-907015 Silicic acid, aluminum magnesium salt aluminum;magnesium;silicate Magnesium aluminate metasilicate Neusilin Angast Neusilin US2 Neusilin FH 2
Full Description

Magnesium aluminum silicate (CAS 1327-43-1) is a refined smectite-clay mineral. It is used as a rheology modifier, suspending agent, and thickener in coatings, personal care, and household products, and as an anticaking agent, opacifier, and absorbent.

Frequently Asked Questions

What is magnesium aluminum silicate used for?

Magnesium aluminum silicate (CAS 1327-43-1) is a refined smectite-clay mineral used as a rheology modifier, suspending agent, and thickener in coatings, personal care, and household products. It also functions as an anticaking agent, opacifier, and absorbent.

Does magnesium aluminum silicate contain aluminum?

Yes. It is a naturally occurring smectite clay whose structure includes both magnesium and aluminum within the silicate lattice (formula reported as AlMgO4Si). The aluminum is bound in the mineral framework, not present as free metal.

What is magnesium aluminum silicate used for in formulations?

In aqueous formulations it thickens and imparts yield value, suspends pigments and actives against settling, and acts as an opacifier and absorbent. In powders it serves as an anticaking, free-flow agent.

Is VEEGUM the same as magnesium aluminum silicate?

VEEGUM is a well-known trade name for refined magnesium aluminum silicate clay grades. The generic material under CAS 1327-43-1 covers the same smectite-clay chemistry; verify grade-specific properties against the supplier specification.

How is bulk magnesium aluminum silicate supplied and priced?

It is supplied as a refined mineral powder in bulk for coatings, personal-care, and household formulation. Pricing depends on grade, volume, and packaging; request a bulk quote with CoA and SDS for your target quantity.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.