Magnesium Montmorillonite is a magnesium-rich form of montmorillonite, belonging to the smectite family of expandable layered phyllosilicate minerals. It is valued in cosmetic and personal-care formulations for its absorbent, swelling, thickening, rheology-modifying, suspending and texture-enhancing properties.
Montmorillonite has a characteristic 2:1 layered structure. The layers contain exchangeable cations, and magnesium can occur as an important exchangeable cation within the mineral structure. The exact mineral composition and cation balance depend on the source, processing and commercial grade.
When dispersed in water, Magnesium Montmorillonite can hydrate and swell, producing a structured colloidal dispersion. This behaviour can contribute to viscosity, suspension and formulation stability.
Suitable cosmetic grades can be considered for face masks, creams, lotions, gels, cleansers, makeup, mineral formulations and other personal-care products.
Magnesium Montmorillonite is a magnesium-associated form of the expandable clay mineral Montmorillonite.
Its key formulation properties may include:
CAS No.: 1318-93-0
This CAS number is commonly associated with Montmorillonite. Magnesium-associated montmorillonite materials may not have a separate universally applicable CAS number because montmorillonite is a naturally variable mineral material rather than a single fixed molecular compound.
INCI: Montmorillonite
CMS accuracy note: Do not represent Magnesium Montmorillonite as a single stoichiometrically fixed chemical compound. Verify the exact CAS, INCI and mineral identity against the selected product's SDS/TDS before publication.
Montmorillonite has a characteristic 2:1 phyllosilicate structure consisting broadly of:
Exchangeable cations and water occur within the interlayer region.
Magnesium can participate in the exchangeable-cation system and influence the hydration, swelling and dispersion behaviour of the material.
The properties can vary according to:
Magnesium Montmorillonite can hydrate and swell when exposed to water.
Water interacts with the interlayer region and can increase the separation between mineral layers.
This can contribute to:
The degree of swelling is dependent on the mineral composition and commercial grade.
Magnesium Montmorillonite can provide mineral-based rheology modification in suitable formulations.
It may help control:
Performance depends on concentration, hydration, particle size, pH, electrolyte concentration and other formulation components.
Montmorillonite materials possess a high surface area and can provide absorbent properties in appropriate cosmetic formulations.
This can be useful in:
Absorption performance is dependent on the mineral's composition, surface properties and processing.
Suitable cosmetic grades can be used in clay-based face-mask formulations.
Potential functions include:
Potential applications include:
It can contribute to formulation structure, viscosity, suspension and mineral texture.
Suitable grades can be considered for makeup systems requiring mineral-based rheology modification or particulate suspension.
Potential applications include:
Proper hydration can allow montmorillonite particles to create a structured aqueous dispersion.
Potential functions include:
Montmorillonite materials can be used as rheology-modifying and stabilizing components in selected emulsion systems.
They may be combined with:
Compatibility testing is important because electrolytes and pH can influence clay hydration and viscosity.
When using Magnesium Montmorillonite, formulators should evaluate:
Proper dispersion is important for achieving consistent hydration and rheological performance.
Poor dispersion may result in:
Processing conditions should follow the technical documentation of the selected grade.
Magnesium Montmorillonite can be considered for suitable:
Magnesium Montmorillonite is a magnesium-associated form of the expandable smectite mineral Montmorillonite.
1318-93-0 is commonly associated with Montmorillonite. The exact CAS identity should be confirmed against the specific commercial grade.
The INCI identity should be verified against the commercial grade; Montmorillonite is the relevant INCI name for montmorillonite cosmetic materials.
It can be used for absorption, thickening, rheology modification, suspension, stabilization and texture modification.
No. It is generally insoluble but can hydrate, swell and disperse in water.
Yes. Properly hydrated material can contribute to viscosity and structured colloidal systems.
Yes. Suitable montmorillonite grades can be used in clay-based face-mask formulations.
Magnesium Montmorillonite describes a magnesium-associated form or composition of montmorillonite. Montmorillonite is the broader mineral identity.
Both are associated with the montmorillonite mineral, but they differ in their predominant exchangeable-cation composition. Sodium-rich materials generally show strong hydration and swelling, while magnesium-associated materials can exhibit different dispersion and rheological behaviour depending on composition and grade.
Magnesium Aluminum Silicate is a broader cosmetic mineral ingredient/material based on magnesium and aluminum silicate minerals, whereas Magnesium Montmorillonite specifically refers to a montmorillonite-type smectite material associated with magnesium.
| Parameter | Specification |
|---|---|
| Appearance | White to off-white powder |