Description

Ethylenebis(Nitrilodimethylene)Tetraphosphonic Acid is a highly effective organic phosphonate scale and corrosion inhibitor. This powerful chelating agent is valued for its exceptional stability across a wide pH and temperature range, preventing the precipitation of metal ions such as calcium, magnesium, and iron. It is a critical component for industrial water treatment, oilfield operations, and detergent formulations where superior sequestration and threshold inhibition are required.

Application

• Industrial Water Treatment: Primary application as a scale inhibitor and dispersant in cooling water systems, boiler water, and reverse osmosis membranes.
• Oilfield Chemicals: Used in squeeze treatments and as an additive in drilling fluids to control scale formation in downhole and production equipment.
• Detergent & Cleaning Formulations: Acts as a builder and sequestrant to enhance cleaning efficiency by inactivating water hardness ions.
• Pulp & Paper Industry: Employed in bleaching processes and as a dispersant to prevent scale on machinery.
• Textile Processing: Serves as a chelant in dyeing and bleaching baths to improve color fastness and process stability.
• Personal Care Products: Used in certain formulations as a stabilizer and chelating agent.
• Metal Surface Treatment: Prevents scale formation in pickling baths and aids in metal ion stabilization.

Basic Information

Product Name	Ethylenebis(Nitrilodimethylene)Tetraphosphonic Acid
CAS No.	1429-50-1
Molecular Formula	C6H20N2O12P4
Molecular Weight	436.10 g/mol
Synonyms	Ethylenediamine tetra(methylene phosphonic acid); EDTMP; Dequest 2041; ENTMP; Ethylenediaminetetramethylenephosphonic acid; 1,2-Ethanediamine, N,N,N',N'-tetrakis(methylenephosphonic acid); Aminotrimethylenephosphonic acid, ethylene derivative; EBNTMPA
EINECS	215-851-2

Quality Control

Our production of Ethylenebis(Nitrilodimethylene)Tetraphosphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, performance, and compliance with relevant industry standards. A detailed Certificate of Analysis (COA) documenting key parameters such as active content, pH, and impurity levels is provided with each shipment.

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 oxidizing agents. For long-term storage, maintaining the original sealed packaging is recommended to preserve product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Active Content (as acid)	≥ 50.0 %
pH (1% aqueous solution)	1.5 - 2.5
Density (20°C)	1.30 - 1.45 g/cm³
Chloride (as Cl)	≤ 0.5 %
Iron (as Fe)	≤ 10 ppm
Identification (IR)	Conforms

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