Description

1,4-Phenylene Bisphosphoric Acid is a high-purity organic phosphonic acid derivative, serving as a critical building block and functional intermediate in advanced material synthesis. Its value lies in its ability to introduce phosphonic acid functionality into aromatic systems, enabling the development of materials with enhanced thermal stability, flame retardancy, and metal-chelating properties. This compound is essential for R&D chemists and manufacturers in the polymer, flame retardant, and specialty chemical industries seeking to create high-performance additives and ligands.

Application

• Flame Retardant Synthon: A key precursor for synthesizing novel, halogen-free flame retardants for engineering plastics, textiles, and coatings.
• Metal Chelating Agent: Used in the preparation of ligands for catalysis, water treatment scale inhibitors, and metal extraction processes.
• Polymer Modification: Incorporated into polymer backbones (e.g., polyesters, polyamides) to impart improved thermal stability and adhesion to metal surfaces.
• Pharmaceutical Intermediate: Serves as a building block in the research and development of bisphosphonate-related active pharmaceutical ingredients (APIs).
• Surface Treatment: Utilized in formulations for surface pretreatment of metals to enhance corrosion resistance and paint adhesion.
• Cross-linking Agent: Functions as a cross-linker in the production of specialty resins and gels with tailored porosity and functionality.

Basic Information

Product Name	1,4-Phenylene Bisphosphoric Acid
CAS No.	75805-16-2
Molecular Formula	C6H10O8P2
Molecular Weight	272.09 g/mol
Synonyms	1,4-Phenylenebis(phosphonic acid); p-Phenylenebis(phosphonic acid); Benzene-1,4-diylbis(phosphonic acid); 1,4-Di(phosphono)benzene; p-Phenylene diphosphonic acid; PPDPhA; 1,4-Benzenediphosphonic acid; 1,4-Bis(phosphono)benzene
EINECS	Contact for details

Quality Control

Our 1,4-Phenylene Bisphosphoric Acid is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Melting Point	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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