Description

Octaammonium Dihydrogen [[(Phosphonatomethyl)Imino]Bis[Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate is a highly effective, multi-dentate chelating agent belonging to the aminophosphonate family. Its primary value lies in its exceptional ability to sequester and deactivate di- and trivalent metal ions, such as calcium, magnesium, iron, and copper, even under challenging conditions. This makes it a critical component for industries requiring superior scale inhibition, corrosion control, and metal ion stabilization. Key sectors that rely on this advanced phosphonate include water treatment, industrial cleaning, textile processing, and oilfield applications.

Application

• Industrial Water Treatment: Acts as a powerful scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis systems, particularly effective against calcium carbonate and sulfate scales.
• Oilfield Chemistry: Used in squeeze treatments and as a component in drilling fluids to control scale formation in downhole and production equipment, enhancing operational efficiency.
• Industrial & Institutional (I&I) Cleaning: Serves as a key builder and sequestrant in heavy-duty alkaline cleaners, detergent formulations, and metal surface treatments to prevent soap scum and improve cleaning efficacy.
• Textile & Pulp Processing: Stabilizes hydrogen peroxide in bleaching baths, prevents metal-catalyzed decomposition, and acts as a dispersant for pigments and dyes.
• Personal Care: Functions as a chelating agent in cosmetic and personal care formulations to enhance stability and shelf-life by binding trace metal impurities.
• Agricultural Formulations: Used as a stabilizer and compatibility agent in liquid fertilizers and agrochemicals to prevent precipitation of metal phosphates.

Basic Information

Product Name	Octaammonium Dihydrogen [[(Phosphonatomethyl)Imino]Bis[Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate
CAS No.	93919-73-4
Molecular Formula	C9H28N3O12P4 · 8NH3 (commonly represented for the octaammonium salt)
Molecular Weight	~ 757.4 g/mol (for the octaammonium salt form)
Synonyms	Diethylenetriamine Penta(methylene phosphonic acid) Octaammonium Salt; DTPMP·8NH3; DTPMP-A; Amino tris(methylene phosphonic acid) derivative; Phosphonomethylated diethylenetriamine octaammonium salt; Dequest 2066 (analogous trade product); Metal sequestrant 93919-73-4; Water treatment phosphonate salt; [[(Phosphonatomethyl)imino]bis(ethane-2,1-diylnitrilobis(methylene))]tetrakisphosphonic acid octaammonium salt
EINECS	Contact for details

Quality Control

Our production of Octaammonium Dihydrogen [[(Phosphonatomethyl)Imino]Bis[Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, performance, and compliance with relevant industry specifications. Certificates of Analysis (COA) detailing key parameters such as active content, pH, density, and phosphonate concentration are provided and available upon request. Our quality system is designed to meet the demands of global supply chains.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may lead to caking or reduced efficacy. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Active Content (as acid)	≥ 50.0 %
pH (as is, 1% solution)	6.0 - 8.0
Density (20°C)	1.30 - 1.40 g/cm³
Identification (IR)	Conforms
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.