Aluminum Diethylphosphinate (ADP)

Aluminum Diethylphosphinate (ADP),CAS 225789-38-8,is a halogen-free, high-efficiency flame retardant used in multiple industries due to its thermal stability, low toxicity, and environmental safety.  

Basic Information:  

-Chemical Name: Aluminum diethylphosphinate (ADP)  

-CAS No.: 225789-38-8  

-Molecular Formula: C₄H₁₀AlO₂P (typically exists as a polymer)  

-Primary Use: Flame retardant (used in engineering plastics, electronics, composites, etc.)  

Applications;  

-Engineering Plastics – Enhances fire resistance in nylon (PA), polyester (PBT/PET), and PC/ABS blends for automotive and electronics.  

-Electronics – Used in circuit boards, connectors and cables to meet flame-retardant standards (UL 94 V-0).  

-Automotive – Protects EV battery housings, engine parts, and interior components from fire risks.  

-Textiles – Added to flame-resistant fabrics for workwear and upholstery without affecting softness.  

-Composites – Improves fire safety in aerospace and fiber-reinforced plastics.  

Advantages: 

-Halogen-free (eco-friendly)  

-Works at high temperatures (up to 300°C)  

-Low smoke & toxicity (safer than brominated alternatives)  

Transport & Storage Requirements  

-Transport Classification: Generally shipped as a non-hazardous chemical (no UN number required).  

-Packaging: Moisture-proof sealed containers (e.g., PE bags + fiber drums).  

-Storage: Keep dry, well-ventilated, and away from strong acids/oxidizers.  

Safety:  

-Dust Control: Avoid inhalation (wear a dust mask if handling powder).  

-Environmental Risk: Prevent release into water (may have long-term aquatic toxicity).  

-Thermal Decomposition: At high temperatures (>300°C), may emit phosphorus oxides (ensure proper ventilation).  

-ADP is not classified as a hazardous substance under major regulations, but proper handling and compliance checks are necessary.  

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