Description

Phosphonic Acid,p-(2-Hydroxyethyl)-, Diethyl Ester is a specialized organophosphorus compound that serves as a versatile intermediate and functional additive. Its molecular structure, featuring both phosphonate and hydroxyl groups, provides unique chelating and surface-modifying properties critical for advanced industrial processes. This chemical is essential for manufacturers in sectors requiring precise metal ion control, scale inhibition, or polymer modification, such as water treatment, polymer synthesis, and specialty chemical production.

Application

• Scale and Corrosion Inhibitor Precursor: A key intermediate in the synthesis of advanced phosphonate-based scale and corrosion inhibitors for industrial cooling water systems, boilers, and reverse osmosis membranes.
• Polymer Additive and Crosslinking Agent: Used in the production of specialty polymers, resins, and coatings, where it can act as a crosslinker, flame retardant, or adhesion promoter.
• Chelating Agent Synthesis: Serves as a building block for manufacturing high-performance chelating agents used in detergent formulations, textile processing, and pulp & paper production.
• Pharmaceutical and Agrochemical Intermediate: Employed in the synthesis of active pharmaceutical ingredients (APIs) and agrochemicals that require a phosphonate functional group.
• Metal Surface Treatment: Functions in formulations for metal cleaning, plating baths, and surface pretreatment to enhance corrosion resistance and coating adhesion.
• Fuel and Lubricant Additive: Used as a component in additives for fuels and lubricants to prevent deposit formation and improve performance.

Basic Information

Product Name	Phosphonic Acid,p-(2-Hydroxyethyl)-, Diethyl Ester
CAS No.	39997-40-5
Molecular Formula	C6H15O5P
Molecular Weight	198.16 g/mol
Synonyms	Diethyl (2-Hydroxyethyl)phosphonate; (2-Hydroxyethyl)phosphonic Acid Diethyl Ester; Ethanol, 2-(Diethoxyphosphinyl)-; Diethyl 2-Hydroxyethylphosphonate; 2-Hydroxyethanephosphonic Acid Diethyl Ester; HEDP Diethyl Ester; Phosphonic Acid, (2-Hydroxyethyl)-, Diethyl Ester
EINECS	Contact for details

Quality Control

Our production of Phosphonic Acid,p-(2-Hydroxyethyl)-, Diethyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay (HPLC/GC), identity confirmation (IR, NMR), and impurity profiling, to ensure consistency and high purity suitable for industrial and fine chemical synthesis. Certificates of Analysis (COA) are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.435 - 1.445
Density (20°C)	1.15 - 1.20 g/mL

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