Description

Aluminum Hydroxide Silicate Sulfate is a specialized inorganic compound with a complex, layered structure. This material is valued for its synergistic properties derived from its aluminum, silicate, and sulfate components, making it a versatile functional additive. It is primarily utilized in industrial applications requiring flame retardancy, smoke suppression, and as a rheology modifier or filler in polymer composites, coatings, and construction materials.

Application

• As a synergistic flame retardant and smoke suppressant in PVC, polyolefins, and rubber compounds.
• As a functional filler to improve mechanical properties and thermal stability in engineering plastics and composites.
• In the formulation of intumescent coatings and fire-resistant building materials.
• As a rheology modifier and anti-settling agent in specialty paints, coatings, and sealants.
• In the production of ceramics and refractories to modify thermal and structural characteristics.
• As a catalyst support or adsorbent material in certain chemical processes.

Basic Information

Product Name	Aluminum Hydroxide Silicate Sulfate
CAS No.	131148-05-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Aluminium Hydroxide Silicate Sulfate; Sulfated Aluminum Silicate Hydroxide; Aluminum Silicate Sulfate Hydroxide; Layered Double Hydroxide Sulfate-Silicate; LDH-based sulfate-silicate; Flame Retardant Additive AHS; Functional Filler AHS
EINECS	Contact for details

Quality Control

Our Aluminum Hydroxide Silicate Sulfate is manufactured under a stringent quality management system. Each batch undergoes rigorous testing for key parameters including chemical composition, particle size distribution, and loss on ignition to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep container tightly sealed when not in use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Complies
Assay (as Al2O3)	≥ 40.0 %
SiO2 Content	15.0 - 25.0 %
SO4 Content	10.0 - 20.0 %
Loss on Ignition (LOI)	20.0 - 30.0 %
Particle Size (D50)	1 - 10 µm
Moisture Content	≤ 2.0 %

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