Description

Ethane-1,2-Diylbis[Imino[(2-Hydroxyphenyl)Methylene]]]Bisphosphonic Acid is a specialized organic phosphonate compound with a complex chelating structure. This compound matters for its powerful ability to sequester and deactivate metal ions, making it a critical component in applications requiring precise metal control. Industries such as water treatment, industrial cleaning, and oilfield services need this high-performance chelant to prevent scale formation, inhibit corrosion, and enhance process stability.

Application

• Industrial Water Treatment: Acts as a superior scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis systems by chelating calcium, magnesium, and other scaling cations.
• Oilfield Chemicals: Used in squeeze treatments and as a component in drilling fluids to control scale deposition in downhole equipment and pipelines, improving operational efficiency.
• Industrial Cleaning Formulations: Serves as a key sequestrant in acidic and alkaline cleaners for industrial equipment, effectively removing and suspending hard water salts and metal oxides.
• Pulp & Paper Processing: Functions as a chelating agent in bleaching processes to deactivate transition metal ions that catalyze cellulose degradation, preserving pulp strength and brightness.
• Textile Processing: Utilized as a stabilizer and sequestrant in dyeing and bleaching baths to prevent adverse reactions caused by metal ion impurities, ensuring color consistency.
• Personal Care Products: Incorporated as a stabilizing agent in formulations to chelate metal ions that can cause product discoloration or rancidity.

Basic Information

Product Name	Ethane-1,2-Diylbis[Imino[(2-Hydroxyphenyl)Methylene]]]Bisphosphonic Acid
CAS No.	20708-36-5
Molecular Formula	C₁₆H₂₀N₂O₁₀P₂
Molecular Weight	462.29 g/mol
Synonyms	Ethylenediamine-N,N'-bis(2-hydroxyphenyl)methylenebis(phosphonic acid); EDTMP-OH; EDDHA-Phosphonate; N,N'-Ethylenebis[2-[(2-hydroxyphenyl)(phosphonomethyl)amino]acetic acid] derivative; Dequest 2066 (related trade series); 1,2-Ethanediylbis[nitrilobis(methylene)]tetrakisphosphonic acid derivative; Hydroxy-EDTMP; Amino tris(methylenephosphonic acid) phenol derivative
EINECS	Contact for details

Quality Control

Our Ethane-1,2-Diylbis[Imino[(2-Hydroxyphenyl)Methylene]]]Bisphosphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) documenting identity, assay, impurity profile, and other critical parameters is provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which may lead to caking or hydrolysis.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 2.0%
pH (1% Solution)	2.0 - 4.0
Iron (Fe)	≤ 50 ppm
Chloride (Cl)	≤ 100 ppm

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