Description

Dialuminum Disilicon Pentaoxide Tetrahydroxide is a high-purity inorganic compound with the CAS registry number 1318-74-7. This specialty chemical serves as a versatile precursor and functional additive, valued for its thermal stability and controlled reactivity. It is essential for manufacturers in advanced ceramics, catalyst development, and specialized glass formulations requiring precise material properties.

Application

• Advanced Ceramics: A key precursor for the synthesis of mullite and other high-performance aluminosilicate ceramics used in refractory linings, electronic substrates, and wear-resistant components.
• Catalyst & Catalyst Support: Utilized in the formulation of catalysts for petrochemical and environmental applications, where its specific surface area and acidity are advantageous.
• Specialty Glass & Enamels: Acts as a flux and property modifier in the production of low-expansion, chemically resistant glass and ceramic coatings.
• Inorganic Binders & Adhesives: Serves as a reactive component in high-temperature inorganic adhesives and sealants.
• Surface Modification: Used in coatings and treatments to enhance the surface properties of metals and other materials for improved adhesion and corrosion resistance.
• Research & Development: Employed as a starting material in material science research for developing novel composites and nanomaterials.

Basic Information

Item	Details
Product Name	Dialuminum Disilicon Pentaoxide Tetrahydroxide
CAS No.	1318-74-7
Molecular Formula	Al2Si2O5(OH)4
Molecular Weight	258.16 g/mol
Synonyms	Aluminum Silicate Hydroxide; Kaolinite (refined); Hydrated Aluminum Silicate; China Clay (purified); Al2O3·2SiO2·2H2O; Dickite (synthetic); Nacrite; EINECS 215-286-4
EINECS	215-286-4

Quality Control

Our Dialuminum Disilicon Pentaoxide Tetrahydroxide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency and meets the required specifications for industrial and technical applications. Certificates of Analysis (COA) documenting purity, physical properties, and impurity profiles 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect flow properties and reactivity.

Specification

Item	Specification
Appearance	White to off-white fine powder
Identification (IR)	Conforms to standard
Assay (as Al2Si2O5(OH)4)	≥ 95.0 %
Loss on Drying (LOD)	≤ 2.0 %
Particle Size (D50)	Contact for details
pH (in aqueous suspension)	4.0 - 6.0
Heavy Metals (as Pb)	≤ 20 ppm

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