Description

Heptasodium Pentahydrogen [Ethane-1,2-Diylbis[[(Phosphonatomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate is a high-performance, multi-functional phosphonate-based chelating agent and scale inhibitor. This compound is engineered to deliver superior sequestration of metal ions, particularly calcium and magnesium, under demanding alkaline conditions. It is a critical component for industrial water treatment, detergent formulations, and textile processing where effective scale and corrosion control is paramount.

Application

• Industrial Water Treatment: Primary application as a highly effective scale and corrosion inhibitor in cooling water systems, boilers, and reverse osmosis (RO) membranes.
• Detergent & Cleaning Formulations: Acts as a powerful builder and sequestrant to enhance cleaning efficiency by inactivating water hardness ions and preventing inorganic deposits.
• Textile & Pulp/Paper Processing: Used as a stabilizer for hydrogen peroxide bleaching baths and to control metal-ion catalyzed decomposition, improving process efficiency and product quality.
• Oilfield & Mining: Employed in scale squeeze treatments and as a chelant in mineral processing to prevent carbonate and sulfate scale formation in downhole and production equipment.
• Personal Care Products: Incorporated as a stabilizing and chelating agent in formulations such as shampoos and liquid soaps.
• Industrial Cleaning: Key ingredient in acidic and alkaline cleaning formulations for metal surfaces and food processing equipment to prevent scale and improve rinsability.

Basic Information

Product Name	Heptasodium Pentahydrogen [Ethane-1,2-Diylbis[[(Phosphonatomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate
CAS No.	93919-76-7
Molecular Formula	C10H28N4Na7O22P6 (or related hydrate forms)
Molecular Weight	Contact for details
Synonyms	Heptasodium salt of Pentahydrogen Ethylenediamine Tetra(methylenephosphonic acid); EDTMP•Na7; Ethylenediamine tetra(methylenephosphonic acid) heptasodium salt; Heptasodium Ethylenediaminetetrakis(methylenephosphonate); Sodium EDTMP; Dequest® 2041 (similar type); Water Treatment Chemical WT-308P; Phosphonic acid, [1,2-ethanediylbis[nitrilobis(methylene)]]tetrakis-, heptasodium salt
EINECS	Contact for details

Quality Control

Our Heptasodium Pentahydrogen [Ethane-1,2-Diylbis[[(Phosphonatomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance and meets high-purity standards for industrial applications. Certificates of Analysis (COA) documenting key parameters such as active content, pH, and density are available upon request to support your quality assurance protocols.

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 acids and strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Clear to slightly yellow liquid
Active Content (as acid)	≥ 25.0 %
pH (1% aqueous solution)	6.0 - 8.0
Density (20°C)	1.25 - 1.35 g/cm³
Identification (IR)	Conforms
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.