Description

[Carbonylbis[Nitrilobis(Methylene)]]Tetrakisphosphonic Acid is a highly effective, multi-dentate chelating agent and scale inhibitor belonging to the phosphonate family. Its molecular structure, featuring multiple phosphonic acid groups, provides exceptional binding affinity for di- and trivalent metal ions such as calcium, magnesium, and iron. This product is essential for industries requiring precise control over water chemistry and metal ion sequestration to prevent scaling, corrosion, and fouling. Key sectors include industrial water treatment, oilfield production, textile processing, and as a stabilizing agent in personal care formulations.

Application

• Industrial Water Treatment: A highly effective scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis systems, controlling calcium carbonate, sulfate, and phosphate scales.
• Oilfield Chemistry: Used in squeeze treatments and as a component in drilling and completion fluids to prevent mineral scale deposition in downhole equipment and formations.
• Textile & Pulp Processing: Acts as a chelant and dispersant to control metal ions that can interfere with bleaching, dyeing, and peroxide stabilization processes.
• Personal Care & Detergents: Functions as a stabilizing agent and chelator in formulations to enhance shelf life and performance by sequestering water hardness ions.
• Industrial Cleaning: Incorporated into acidic and alkaline cleaning formulations for equipment and membranes to enhance cleaning efficacy and prevent redeposition of soils.
• Agriculture & Horticulture: Used in micronutrient fertilizer formulations to chelate and improve the bioavailability of essential metals like iron and zinc.

Basic Information

Product Name	[Carbonylbis[Nitrilobis(Methylene)]]Tetrakisphosphonic Acid
CAS No.	67923-76-6
Molecular Formula	C7H20N3O13P4
Molecular Weight	537.13 g/mol
Synonyms	Carbonyldiaminetetrakis(methylenephosphonic acid); DTPMP; Diethylenetriaminepenta(methylenephosphonic acid) (common trade name); Dequest 2060; Amino tris(methylenephosphonic acid) derivative; Phosphonic acid, [[(phosphonomethyl)imino]bis[2,1-ethanediylnitrilobis(methylene)]]tetrakis-; PBTC precursor
EINECS	Contact for details

Quality Control

Our [Carbonylbis[Nitrilobis(Methylene)]]Tetrakisphosphonic Acid is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance. Key parameters such as active content, pH, and iron content are verified. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee compliance with your technical specifications.

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 material is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Assay (Active Content)	≥ 50%
pH (1% aqueous solution)	1.5 - 2.5
Density (20°C)	1.3 - 1.4 g/cm³
Iron (Fe) Content	≤ 10 ppm
Chloride (as Cl)	≤ 50 ppm

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