Description

Aluminum Hypophosphite is an inorganic compound valued for its role as an effective flame retardant and smoke suppressant. This material is particularly significant for enhancing the fire safety of polymer composites without compromising their physical properties. It is primarily needed by manufacturers in the plastics, textiles, and coatings industries seeking halogen-free, environmentally friendly flame-retardant solutions.

Application

• As a flame retardant and smoke suppressant in engineering plastics such as polyamides (nylon), polyesters (PBT, PET), and epoxy resins.
• In the formulation of halogen-free flame-retardant masterbatches and compounds for wire and cable insulation.
• For enhancing the fire resistance of thermoplastic polyurethane (TPU) and other elastomers used in automotive and construction applications.
• In intumescent fire-retardant coatings and paints for structural steel and wood.
• As a synergistic component in flame-retardant systems combined with other agents like melamine polyphosphate.
• In the production of fire-safe textiles and synthetic fibers.

Basic Information

Product Name	Aluminum Hypophosphite
CAS No.	7784-22-7
Molecular Formula	Al(H2PO2)3 or AlPO2H2
Molecular Weight	221.96 g/mol
Synonyms	Aluminium hypophosphite; Aluminum phosphinate; Aluminium(III) hypophosphite; Hypophosphorous acid, aluminum salt; Aluminium dihydrophosphite; Flame retardant AHP; FR-AHP
EINECS	232-055-5

Quality Control

Our Aluminum Hypophosphite is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure it meets precise specifications for purity, particle size, and thermal stability, which are critical for consistent flame-retardant performance. Certificates of Analysis (COA) documenting these parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White fine powder
Identification (IR)	Conforms
Assay (Al(H2PO2)3)	≥ 98.0 %
Loss on Drying	≤ 1.0 %
pH (10% slurry)	4.0 - 6.0
Average Particle Size (D50)	5 - 15 µm
Thermal Decomposition Temperature (Tonset)	≥ 300 °C

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