Description

Zinc Phosphate, Monobasic is an inorganic salt with the chemical formula Zn(H2PO4)2. This compound is valued for its role as a corrosion-inhibiting pigment and a key intermediate in the formulation of specialized coatings and cements. It is primarily required by manufacturers in the paints & coatings, metal treatment, and dental cement industries seeking to enhance product durability and performance.

Application

• Corrosion-Inhibiting Primer Pigment: A critical component in anti-corrosive primers for steel and metal surfaces, providing long-term protection.
• Dental and Orthopedic Cements: Used in the formulation of zinc phosphate cements for dental restorations and certain bone cements.
• Metal Surface Treatment: Applied in conversion coatings and phosphating processes to prepare metal surfaces for painting and improve paint adhesion.
• Flame Retardant Additive: Incorporated into polymers and coatings to impart flame-retardant properties.
• Agricultural Micronutrient: Serves as a source of zinc and phosphorus in specialized fertilizer formulations.
• Laboratory Reagent: Utilized in analytical chemistry and research as a buffering agent or precipitating agent.

Basic Information

Product Name	Zinc Phosphate, Monobasic
CAS No.	58968-26-6
Molecular Formula	Zn(H2PO4)2
Molecular Weight	295.39 g/mol
Synonyms	Zinc dihydrogen phosphate; Monozinc phosphate; Acid zinc phosphate; Zinc bis(dihydrogen phosphate); Phosphoric acid, zinc salt (2:1); Zinc(2+) bis(dihydrogen phosphate); Zn(H2PO4)2
EINECS	Contact for details

Quality Control

Our Zinc Phosphate, Monobasic is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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

Specification

Item	Specification
Appearance	White crystalline powder or lumps
Identification (IR)	Conforms
Assay (as Zn(H2PO4)2)	≥ 98.0 %
pH (5% solution)	3.0 - 4.5
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %

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