Description

n-(2-Hydroxyethyl)Iminobis(Methylphosphonic Acid) is a high-performance, multifunctional phosphonic acid derivative. This compound matters for its exceptional chelating and scale-inhibiting properties, making it a critical component in water treatment and industrial cleaning formulations. Industries that require robust metal ion control, such as cooling water systems, oilfield operations, and pulp & paper manufacturing, need this reliable chemical. Its unique structure provides superior stability and performance under demanding conditions.

Application

• Industrial Water Treatment: Primary application as a highly effective scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis systems.
• Oilfield Chemicals: Used in scale squeeze treatments and as a component in drilling fluids to control mineral deposition and improve fluid stability.
• Pulp & Paper Processing: Acts as a chelant and dispersant to control metal ions (e.g., calcium, iron) that can interfere with bleaching processes and paper quality.
• Industrial & Institutional Cleaning: Key ingredient in heavy-duty detergent and cleaner formulations for its superior sequestering power against hard water ions.
• Textile Processing: Employed as a stabilizer and chelating agent in peroxide bleaching baths and dyeing processes.
• Personal Care: Functions as a chelating agent in cosmetic and personal care formulations to enhance product stability and shelf life.

Basic Information

Product Name	n-(2-Hydroxyethyl)Iminobis(Methylphosphonic Acid)
CAS No.	89187-27-9
Molecular Formula	C5H15NO8P2
Molecular Weight	279.12 g/mol
Synonyms	HEIDP; Hydroxyethyliminobis(methylenephosphonic acid); N-(2-Hydroxyethyl)iminodimethylenediphosphonic acid; 1-Hydroxyethane-1,1-diyldiphosphonic acid, 2-(aminomethyl) deriv.; Dequest 2051 (Trade Name); Phosphonic acid, P,P'-[2-(2-hydroxyethyl)imino]bis[methylene]bis-; 2-(Bis(phosphonomethyl)amino)ethanol; Amino tris(methylenephosphonic acid) hydroxyethyl derivative
EINECS	Contact for details

Quality Control

Our n-(2-Hydroxyethyl)Iminobis(Methylphosphonic Acid) is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing, including assay by titration and identification by FTIR, to ensure it meets precise specifications for active content and purity. Certificates of Analysis (COA) are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical processes.

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 oxidizing agents. Due to its acidic nature, ensure containers are made of compatible materials such as high-density polyethylene (HDPE).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Assay (as acid)	≥ 50.0 %
Active Content (as HEIDP)	≥ 95.0 %
pH (1% aqueous solution)	≤ 2.5
Density (20°C)	1.30 - 1.45 g/cm³
Iron (Fe)	≤ 10 ppm
Chloride (Cl)	≤ 50 ppm

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