Description

Zinc Phosphinate is an inorganic salt widely recognized for its role as an effective flame retardant and smoke suppressant in polymer systems. Its primary value lies in its ability to impart significant fire resistance while maintaining good thermal stability and compatibility with various materials. This makes it a critical component for manufacturers in the plastics, textiles, and coatings industries seeking to meet stringent safety and regulatory standards.

Application

• Flame Retardant for Engineering Plastics: Key additive in polyamides (PA), polyesters (PBT, PET), and other thermoplastics to achieve UL94 V-0 ratings.
• Synergistic Agent in Halogen-Free Systems: Used in combination with nitrogen-based compounds like melamine polyphosphate to enhance flame retardant efficiency.
• Fire-Resistant Coatings and Paints: Imparts flame retardancy to intumescent and other protective coatings for construction materials.
• Textile Finishing: Applied to synthetic and natural fiber blends to improve their fire resistance for protective clothing and furnishings.
• Rubber and Elastomer Compounding: Enhances the flame retardant properties of cables, gaskets, and industrial rubber products.
• Specialty Adhesives and Sealants: Incorporated to reduce flammability in high-performance bonding applications.

Basic Information

Product Name	Zinc Phosphinate
CAS No.	15060-64-7
Molecular Formula	Zn(H2PO2)2
Molecular Weight	215.36 g/mol
Synonyms	Zinc Hypophosphite; Zinc Dihypophosphite; Hypophosphorous Acid, Zinc Salt; Zinc Phosphinate (1:2); Zinc(II) Phosphinate; Zinc Bis(hypophosphite); Phosphinic Acid, Zinc Salt
EINECS	239-117-7

Quality Control

Our Zinc Phosphinate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. We provide comprehensive Certificates of Analysis (COA) detailing purity, physical properties, and key performance indicators relevant to flame retardant applications. Our quality protocols are designed to support compliance with global regulatory frameworks, including REACH.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Zn(H2PO2)2)	≥ 98.0 %
Zinc (Zn) Content	30.0 - 31.0 %
Phosphorus (P) Content	28.5 - 29.5 %
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Particle Size (D50)	Contact for details

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