Description

Pentazinc Hydroxide Tris(Phosphate) is an inorganic zinc phosphate compound primarily used as a high-performance corrosion inhibitor and flame retardant synergist. Its value lies in its ability to provide long-term, stable protection for metal substrates and enhance the fire resistance of polymer materials. This product is essential for manufacturers in the coatings, plastics, rubber, and construction material industries seeking to improve product durability and safety compliance.

Application

• As a non-toxic, anti-corrosive pigment in primers and protective coatings for steel, aluminum, and other metals.
• As a synergistic flame retardant in polyolefins, PVC, engineering plastics, and rubber compounds.
• In the formulation of anticorrosive primers for automotive, marine, and industrial equipment.
• As a stabilizing and fire-retardant filler in wire and cable insulation materials.
• For the production of specialty ceramics and glass with specific thermal or electrical properties.
• In the manufacture of corrosion-inhibiting sealants and adhesives for construction applications.

Basic Information

Product Name	Pentazinc Hydroxide Tris(Phosphate)
CAS No.	60430-04-8
Molecular Formula	Zn5(OH)(PO4)3 • xH2O
Molecular Weight	Contact for details
Synonyms	Zinc Hydroxide Phosphate; Zinc Phosphate Hydroxide; Basic Zinc Phosphate; Zinc White Phosphate; Corrosion Inhibitor ZP; Flame Retardant ZP; Anticorrosive Pigment ZP; ZP Compound
EINECS	Contact for details

Quality Control

Our Pentazinc Hydroxide Tris(Phosphate) is manufactured under a stringent quality management system. Each batch undergoes rigorous testing to ensure consistent chemical composition, particle size distribution, and performance characteristics relevant to its application as a corrosion inhibitor and flame retardant. A Certificate of Analysis (COA) detailing purity, moisture content, and key physical properties is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture and CO2, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as Zn5(OH)(PO4)3)	≥ 95.0%
Moisture Content	≤ 2.0%
Particle Size (D50)	2 - 10 µm
Lead (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.