Description

1,2-Benzenediphosphonic Acid CAS NO 28255-47-2 is a specialized organophosphorus compound featuring two phosphonic acid groups on a benzene ring, offering unique chelating and metal-binding properties. This structure makes it a valuable intermediate and functional additive in advanced material science and industrial chemistry. It is primarily sought by manufacturers and R&D facilities in sectors requiring precise metal ion control, scale inhibition, or surface modification.

Application

• As a chelating agent and scale inhibitor in industrial water treatment systems, particularly for controlling calcium and barium sulfate scales.
• Key intermediate in the synthesis of advanced metal-organic frameworks (MOFs) and coordination polymers for catalysis and gas storage.
• Used in the formulation of corrosion inhibitors and metal surface treatment solutions.
• As a functional monomer for creating ion-exchange resins and specialty polymers with high metal affinity.
• In analytical chemistry as a complexing agent for the separation and detection of specific metal ions.
• Potential application in pharmaceutical synthesis as a building block for bisphosphonate-related compounds.
• Research and development of novel flame retardant materials and additives.

Basic Information

Product Name	1,2-Benzenediphosphonic Acid
CAS No.	28255-47-2
Molecular Formula	C6H8O6P2
Molecular Weight	238.07 g/mol
Synonyms	Benzene-1,2-diphosphonic Acid; o-Benzenediphosphonic Acid; 1,2-Phenylenediphosphonic Acid; o-Phenylenediphosphonic Acid; (1,2-Phenylene)bis(phosphonic acid); Vicinal Benzenediphosphonic Acid
EINECS	Contact for details

Quality Control

Our production of 1,2-Benzenediphosphonic Acid adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and titration to confirm identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, alkaline solutions

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