Description

Aluminum Phosphite CAS NO 15099-32-8 is an inorganic compound primarily valued for its role as a highly effective flame retardant and smoke suppressant. Its commercial significance lies in its ability to enhance the fire safety of various polymeric materials without compromising key physical properties. This product is essential for manufacturers in the plastics, rubber, and construction material industries seeking to meet stringent fire safety regulations.

Application

• Flame Retardant for Polymers: A key additive in polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), and epoxy resins to improve fire resistance.
• Smoke Suppressant: Reduces smoke emission during combustion in wires, cables, and construction materials.
• Stabilizer for PVC: Acts as a secondary stabilizer, enhancing the thermal stability of PVC compounds.
• Wood Treatment: Used in formulations for fire-retardant coatings and treatments for wood and textiles.
• Specialty Ceramics & Glass: Employed as a precursor in the production of certain phosphate-based ceramics and glasses.
• Antifungal Agent: Finds application in specific agricultural or material preservation formulations for its fungicidal properties.

Basic Information

Product Name	Aluminum Phosphite
CAS No.	15099-32-8
Molecular Formula	AlPO3 or Al2(HPO3)3
Molecular Weight	105.95 g/mol (for AlPO3)
Synonyms	Aluminium phosphite; Aluminum hydrogen phosphite; Phosphorous acid, aluminum salt; Aluminium phosphonate; Aluminium(III) phosphite; Fosfitode aluminio; Aluminum phosphite (1:1); Aluminum monophosphite
EINECS	239-157-7

Quality Control

Our Aluminum Phosphite is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, particle size distribution, and performance as a flame retardant. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, moisture content, and heavy metal limits 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (Al2O3 content)	≥ 30.0 %
Assay (P2O3 content)	≥ 65.0 %
Moisture (Loss on Drying)	≤ 2.0 %
Particle Size (D50)	≤ 10 μm
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Practically insoluble

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