Description

2-Hydroxy-1,3-Propylenediamine-N,N,N',N'-Tetra(Methylenephosphonic Acid) is a highly effective, multi-functional organic phosphonate chelating agent. Its molecular structure provides exceptional scale inhibition and metal ion sequestration capabilities, making it a critical component for protecting industrial systems. This product is essential for water treatment, oilfield, and detergent formulators who require superior performance under demanding conditions of high temperature and pH.

Application

• Industrial Water Treatment: Primary application as a highly effective scale inhibitor and dispersant for calcium carbonate, sulfate, and phosphate scales in cooling water, boiler water, and reverse osmosis systems.
• Oilfield Chemicals: Used in scale squeeze treatments and as a component in drilling and completion fluids to control mineral deposition and stabilize brines.
• Detergent & Cleaning Formulations: Acts as a powerful builder and chelant to enhance cleaning efficiency by sequestering water hardness ions (Ca²⁺, Mg²⁺) and stabilizing bleach.
• Pulp & Paper Industry: Employed as a chelating agent in bleaching processes to deactivate transition metal ions that catalyze peroxide decomposition.
• Textile Processing: Used to prevent scale formation and sequester metals in dyeing and bleaching baths, improving process consistency and fabric quality.
• Personal Care Products: Incorporated as a stabilizer and chelant in formulations such as shampoos and liquid soaps.

Basic Information

Product Name	2-Hydroxy-1,3-Propylenediamine-N,N,N',N'-Tetra(Methylenephosphonic Acid)
CAS No.	54622-43-4
Molecular Formula	C7H20N2O13P4
Molecular Weight	492.16 g/mol
Synonyms	Hydroxy-1,3-propylenediaminetetra(methylenephosphonic acid); HEDTMP; Hydroxyethylidenediphosphonic acid derivative; 1-Hydroxyethane-1,1-diphosphonic acid tetra sodium salt related compound; Amino tris(methylenephosphonic acid) derivative; Phosphonic acid, P,P',P'',P'''-[1,3-propanediylbis[nitrilobis(methylene)]]tetrakis-, hydrate; Dequest 2060S (related trade name); Chelest PH-400 (related trade name)
EINECS	Contact for details

Quality Control

Our production of 2-Hydroxy-1,3-Propylenediamine-N,N,N',N'-Tetra(Methylenephosphonic Acid) adheres to strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry standards. A comprehensive Certificate of Analysis (COA) detailing assay, active content, pH, density, and other critical parameters is provided with each shipment and is available upon request.

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, ensure the container is properly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Clear to slightly yellow aqueous solution
Active Content (as acid)	≥ 50.0 %
pH (1% aqueous solution)	1.5 - 2.5
Density (20°C)	1.30 - 1.40 g/cm³
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.