Description

Calcium Phosphonate CAS NO 25493-06-5 is an organophosphorus compound where phosphonic acid groups are coordinated with calcium ions. This product is valued for its role as a versatile intermediate and functional additive, offering unique chemical properties derived from its phosphonate moiety. It serves critical functions in industries such as water treatment, polymer stabilization, and as a precursor for advanced materials. Its utility is driven by its ability to act as a scale inhibitor, corrosion inhibitor, and a component in flame-retardant formulations.

Application

• Water Treatment: Acts as an effective scale and corrosion inhibitor in industrial cooling and boiler water systems.
• Polymer Additives: Used as a stabilizer and flame retardant synergist in plastics and polymer composites.
• Lubricant & Grease Formulation: Functions as an anti-wear and extreme pressure additive.
• Ceramic & Glass Production: Serves as a fluxing agent and modifier for material properties.
• Metal Surface Treatment: Employed in conversion coatings and pretreatment processes for corrosion protection.
• Chemical Synthesis: A key intermediate for producing other phosphonate esters and specialty chemicals.
• Agriculture: Investigated for use as a nutrient source and in certain pesticide formulations.
• Detergents & Cleaners: Functions as a chelating agent and builder to enhance cleaning efficiency.

Basic Information

Product Name	Calcium Phosphonate
CAS No.	25493-06-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Calcium Phosphonate; Phosphonic acid, calcium salt; Calcium bis(phosphonate); Calcium dihydrogen phosphite; Calcium phosphite; Phosphonato calcium; Calcium phosphinate (related); Calcium organophosphonate; Calphos (possible trade name)
EINECS	Contact for details

Quality Control

Our Calcium Phosphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets defined specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) documenting results for key parameters is provided with every shipment. Our quality commitment supports compliance with relevant industrial and regulatory standards.

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 to prevent absorption of atmospheric moisture. Keep away from strong acids and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms
Assay (Calcium Phosphonate)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Contact for details
pH (in solution)	Contact for details

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