Description

Norstrandite CAS NO 13840-05-6 is a specialized aluminum hydroxide polymorph, distinct from the more common gibbsite and bayerite forms. This compound is valued for its unique crystalline structure and thermal properties, making it a material of interest for advanced industrial applications. It is primarily utilized in the development of high-performance ceramics, catalyst supports, and as a precursor for specialized alumina products.

Application

• Advanced Ceramics: As a precursor for producing high-purity, high-strength alumina ceramics with controlled porosity and microstructure.
• Catalyst & Catalyst Support: Used in the synthesis of catalysts where specific surface area and thermal stability are critical.
• Specialty Alumina Production: Serves as a starting material for generating transitional aluminas (e.g., gamma, theta) used in adsorbents and coatings.
• Flame Retardant Filler: Incorporated into polymer composites to enhance fire resistance due to its endothermic decomposition.
• Electronic Materials: Potential use in substrates and insulating layers within electronic components.
• Research & Development: Employed in material science studies investigating the properties and transformations of aluminum hydroxide phases.

Basic Information

Product Name	Norstrandite
CAS No.	13840-05-6
Molecular Formula	Al(OH)3
Molecular Weight	78.00 g/mol
Synonyms	Aluminum Trihydroxide, Norstrandite; α-Al(OH)3 (Norstrandite form); Aluminum Hydroxide (Norstrandite phase); Norstrandite Alumina Trihydrate; ATH (Norstrandite); Hydrargillite (Norstrandite); Alumina Hydrate (Norstrandite)
EINECS	Contact for details

Quality Control

Our Norstrandite is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and performance. We provide comprehensive analytical data, including phase purity verification by X-ray diffraction (XRD) and chemical assay. Certificates of Analysis (COA) detailing all relevant specifications are available for every shipment 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 and CO2.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (XRD)	Conforms to Norstrandite pattern
Assay (as Al(OH)3)	≥ 98.0 %
Phase Purity (vs. Gibbsite/Bayerite)	≥ 95 %
Loss on Drying (LOD)	≤ 2.0 %
Particle Size (D50)	Contact for details
Specific Surface Area (BET)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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