Description

Undecasodium Hydrogen [Ethane-1,2-Diylbis[[(Phosphonatomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate is a high-performance, multi-dentate phosphonate chelating agent and scale inhibitor. This compound matters for its exceptional ability to sequester di- and trivalent metal ions, such as calcium, magnesium, and iron, under demanding conditions, preventing scale formation and corrosion. It is essential for industries requiring superior water treatment, where it provides stability and efficiency in high-temperature and high-pH environments. Key users include manufacturers in industrial water treatment, detergent formulation, textile processing, and oilfield applications.

Application

• Industrial Water Treatment: As a highly effective threshold scale inhibitor and dispersant in cooling towers, boilers, and reverse osmosis systems.
• Detergent & Cleaning Formulations: Acts as a powerful builder and sequestrant to enhance cleaning efficiency by inactivating water hardness ions.
• Textile Processing: Used in bleaching and dyeing baths to stabilize peroxides and prevent metal-ion catalyzed degradation of fabrics.
• Oilfield Chemistry: Employed in squeeze treatments and water flooding operations to control scale deposition in downhole and surface equipment.
• Pulp & Paper Industry: Serves as a stabilizer in peroxide bleaching processes and a dispersant to control deposits.
• Personal Care Products: Functions as a chelating agent in formulations to improve stability and shelf-life.
• Metal Surface Treatment: Used in cleaning and pickling solutions to control scale and improve surface quality.
• Agriculture: Can be utilized in fertilizer and pesticide formulations to improve compatibility and prevent nozzle clogging.

Basic Information

Product Name	Undecasodium Hydrogen [Ethane-1,2-Diylbis[[(Phosphonatomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate
CAS No.	93919-78-9
Molecular Formula	C14H28N4O24P8Na11 (or related sodium salt form)
Molecular Weight	Contact for details
Synonyms	11-Sodium salt of HEDTMP; Undecasodium HEDTMP; Ethane-1,2-diylbis[[(phosphonatomethyl)imino]ethane-2,1-diylnitrilobis(methylene)]tetrakisphosphonic acid undecasodium salt; HEDTMP, Na11 salt; Hexaethylenediamine-N,N,N',N'-tetrakis(methylenephosphonic acid) undecasodium salt; 1,2-Ethanediylbis[[(phosphonomethyl)imino]ethane-2,1-diylnitrilobis(methylene)]tetrakisphosphonic acid undecasodium salt; Phosphonate chelant PB-11; Scale inhibitor PB-11
EINECS	Contact for details

Quality Control

Our Undecasodium Hydrogen [Ethane-1,2-Diylbis[[(Phosphonatomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance and compliance with relevant industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, active content, and key physical-chemical parameters is provided with every shipment. Our quality protocols are designed to meet the demands of global markets, including adherence to principles of REACH and other regional regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Active Content (as acid)	≥ 50.0 %
pH (1% aqueous solution)	6.0 - 8.0
Density (20°C)	1.30 - 1.45 g/mL
Iron (Fe)	≤ 10 ppm
Chloride (Cl)	≤ 100 ppm

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