Description

1,4-Benzenedicarboxylic Acid,2,5-Diphosphono- is a specialized, multifunctional organic compound featuring both carboxylic acid and phosphonic acid groups on an aromatic core. This unique structure makes it a highly effective chelating agent and a valuable intermediate for synthesizing advanced materials. It is primarily sought after by manufacturers in the water treatment, polymer, and specialty chemical industries for applications requiring strong metal ion sequestration and surface modification.

Application

• Scale and Corrosion Inhibitor in Water Treatment: Acts as a highly effective chelating agent to control scale formation from calcium, magnesium, and other metal ions in industrial cooling and boiler water systems.
• Monomer for Functional Polymers: Serves as a key building block for synthesizing ion-exchange resins, membranes, and coatings with enhanced adhesion and anti-fouling properties.
• Detergent Builder and Chelating Agent: Used in industrial and institutional cleaning formulations to sequester hard water ions, improving surfactant efficiency and preventing soap scum.
• Surface Treatment and Metal Finishing: Applied in metal pretreatment and plating baths to improve surface adhesion, corrosion resistance, and coating uniformity.
• Mineral Processing and Oilfield Chemicals: Functions as a dispersant and scale inhibitor in mineral slurry processing and in oilfield operations to prevent downhole scaling.
• Research & Development Chemical: Utilized in academic and industrial R&D for developing novel metal-organic frameworks (MOFs), catalysts, and pharmaceutical intermediates.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid,2,5-Diphosphono-
CAS No.	223519-93-5
Molecular Formula	C8H8O10P2
Molecular Weight	326.09 g/mol
Synonyms	2,5-Diphosphonoterephthalic Acid; Terephthalic Acid-2,5-diphosphonic Acid; 2,5-Bis(phosphono)terephthalic Acid; DPTA; 2,5-Dicarboxy-1,4-benzenediphosphonic Acid; 1,4-Benzenedicarboxylic acid, 2,5-bis(phosphono)-; [1,1'-Biphenyl]-2,5-diphosphonic acid, 4,4'-dicarboxy- (related structure)
EINECS	Contact for details

Quality Control

Our production of 1,4-Benzenedicarboxylic Acid,2,5-Diphosphono- adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. All materials undergo rigorous analytical testing, including assay (HPLC), identification (IR, NMR), and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing purity, physical characteristics, and test results is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in alkaline aqueous solutions

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