Description

Ethane-1,2-Diylbis[[(Phosphonomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonic Acid is a high-performance, multi-dentate phosphonic acid derivative, valued for its exceptional chelating and scale inhibition properties. Its complex molecular structure provides superior binding affinity for polyvalent metal ions, making it a critical component in industrial water treatment and process chemistry. This compound is essential for manufacturers and formulators in sectors requiring advanced metal ion control, corrosion prevention, and mineral scale management.

Application

• Industrial Water Treatment: Primary application as a highly effective scale and corrosion inhibitor in cooling water systems, boilers, and reverse osmosis membranes.
• Oilfield Chemistry: Used in scale squeeze treatments and as an additive in drilling and completion fluids to control mineral deposition (e.g., barium sulfate, calcium carbonate).
• Pulp & Paper Industry: Serves as a chelant and dispersant in bleaching processes and to control metal-ion catalyzed decomposition of hydrogen peroxide.
• Textile Processing: Acts as a stabilizer and sequestrant in peroxide bleaching baths and dyeing processes to improve color fastness and fabric quality.
• Metal Surface Treatment: Employed in cleaning, pickling, and plating baths to complex interfering metal ions and prevent undesirable precipitation.
• Detergent & Cleaning Formulations: Incorporated as a builder to enhance cleaning efficiency by sequestering water hardness ions (Ca²⁺, Mg²⁺).
• Personal Care Products: Used in select formulations as a chelating agent to stabilize products by binding trace metals.

Basic Information

Product Name	Ethane-1,2-Diylbis[[(Phosphonomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonic Acid
CAS No.	36475-52-2
Molecular Formula	C₁₄H₄₄N₄O₁₂P₄
Molecular Weight	612.42 g/mol
Synonyms	Ethylenediamine tetra(methylenephosphonic acid) (EDTMP); EDTMPA; Dequest 2041; 1,2-Ethanediamine-N,N,N',N'-tetrakis(methylenephosphonic acid); Ethylenediaminetetramethylenephosphonic acid; Aminotris(methylenephosphonic acid) ethylenediamine derivative; N,N,N',N'-Ethylenediaminetetrakis(methylenephosphonic acid); UNII-9F8S6L8B6T
EINECS	253-049-1

Quality Control

Our production of Ethane-1,2-Diylbis[[(Phosphonomethyl)Imino]Ethane-2,1-Diylnitrilobis(Methylene)]]Tetrakisphosphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay by titration, identification by FT-IR, and quantification of key impurities, to ensure it meets precise specifications for industrial use. Certificates of Analysis (COA) documenting purity, active content, and physical parameters are provided to guarantee traceability and compliance with your technical requirements.

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); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (Active Content)	≥ 95.0 %
pH (1% Aqueous Solution)	1.5 - 2.5
Water Content	≤ 2.0 %
Chloride (as Cl⁻)	≤ 0.1 %
Iron (Fe)	≤ 50 ppm

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