Description

Zinc Phosphite CAS NO 14332-59-3 is an inorganic compound valued for its role as a corrosion inhibitor and flame retardant synergist. It is particularly effective in protecting ferrous and non-ferrous metals in various coating and polymer systems. This product is essential for manufacturers in the paint & coatings, plastics, and construction chemical industries seeking to enhance material durability and fire safety.

Application

• Corrosion Inhibiting Pigment in primers, anti-corrosive paints, and industrial coatings for steel and other metals.
• Flame Retardant Synergist in plastics, rubber, and textiles, often used in combination with other agents like aluminum trihydrate or magnesium hydroxide.
• Stabilizer Component in PVC and other halogenated polymer systems to improve thermal stability.
• Additive for Construction Materials such as sealants, adhesives, and cementitious coatings to impart corrosion resistance.
• Wood Preservative Formulations to protect against fungal decay and insect damage.
• Specialty Chemical Intermediate for the synthesis of other phosphorous-based compounds.

Basic Information

Product Name	Zinc Phosphite
CAS No.	14332-59-3
Molecular Formula	ZnHPO3 or Zn3(PO3)2 (commonly represented)
Molecular Weight	Contact for details
Synonyms	Zinc phosphonate; Phosphorous acid, zinc salt (1:?); Zinc dihydrogen phosphite; Zinc hydrogen phosphite; Zinc metaphosphite; Corrosion inhibitor ZP; FR-ZnP; Zinci phosphis
EINECS	238-274-3

Quality Control

Our Zinc Phosphite is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistency and meets relevant industrial specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. The product is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as ZnHPO3)	≥ 98.0 %
Zinc (Zn) Content	Contact for details
Phosphorus (P) Content	Contact for details
Moisture (Loss on Drying)	≤ 2.0 %
Particle Size (D50)	Contact for details
Water Solubility	Practically insoluble

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