Description

Silicic Acid, Aluminum Magnesium Sodium Salt CAS NO 12040-43-6 is a synthetic, inorganic aluminosilicate compound valued for its ion-exchange, adsorption, and molecular sieve properties. This material is engineered to provide consistent performance as a selective adsorbent and catalyst support in demanding industrial processes. It is primarily utilized by manufacturers in the petrochemical, water treatment, and specialty chemical synthesis sectors seeking reliable, high-surface-area materials.

Application

• Catalyst & Catalyst Support: Acts as a solid acid catalyst or a high-surface-area support for active metal catalysts in hydrocarbon cracking and other petrochemical reactions.
• Selective Adsorption & Separation: Used in molecular sieve applications for the separation of gases (e.g., oxygen from air) or the drying and purification of liquid streams.
• Ion Exchange Medium: Employed in water softening and purification processes to remove specific cations like calcium, magnesium, or heavy metals from aqueous solutions.
• Additive in Detergents & Cleaners: Functions as a builder to soften water, enhance surfactant efficiency, and prevent redeposition of soil in industrial and institutional cleaning formulations.
• Specialty Additive in Polymers & Coatings: Incorporated as a functional filler to modify rheological properties, improve thermal stability, or act as an anti-caking agent.

Basic Information

Product Name	Silicic Acid, Aluminum Magnesium Sodium Salt
CAS No.	12040-43-6
Molecular Formula	Typically represented as a mixed oxide: (Na2O·Al2O3·MgO·xSiO2·yH2O)
Molecular Weight	Variable, based on the SiO2/Al2O3 ratio and hydration state.
Synonyms	Aluminum Magnesium Sodium Silicate; Sodium Magnesium Aluminum Silicate; Synthetic Aluminosilicate; Molecular Sieve (Type A variant); Inorganic Ion Exchanger; Zeolite-like material; Adsorbent Grade Silicate; Hydrated Sodium Magnesium Aluminum Silicate
EINECS	234-924-7

Quality Control

Our Silicic Acid, Aluminum Magnesium Sodium Salt is manufactured under a strict quality management system. Each batch is tested against critical parameters including ion-exchange capacity, adsorption isotherms, particle size distribution, and chemical composition to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed when not in use to prevent moisture pickup, which can affect performance characteristics.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to standard
Assay (as ignited oxide basis)	≥ 95.0 %
Loss on Drying (105°C)	≤ 15.0 %
Particle Size (Typical, % passing 200 mesh)	≥ 90 %
Bulk Density	0.6 - 0.9 g/mL
pH (5% slurry)	9.0 - 11.0
Ion Exchange Capacity	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.