Description

1,4-Benzenebisphosphonic Acid (CAS NO 880-68-2) is a high-purity organic phosphonic acid derivative characterized by its symmetrical aromatic structure with two phosphonic acid groups. This compound serves as a critical chelating agent and metal ion sequestrant, offering superior stability and binding efficiency. It is essential for industries requiring precise control over metal-catalyzed reactions, scale inhibition, and surface modification processes.

Application

• Scale and Corrosion Inhibitor: A key component in industrial water treatment formulations for boilers, cooling towers, and desalination plants.
• Pharmaceutical Intermediate: Used in the synthesis of bisphosphonate drugs for treating bone disorders such as osteoporosis.
• Metal Surface Treatment: Acts as a chelating agent in metal plating baths and as a component in conversion coatings to improve adhesion and corrosion resistance.
• Polymer Additive: Functions as a flame retardant and stabilizer in the production of specialty polymers and engineering plastics.
• Catalyst and Ligand: Employed in homogeneous catalysis and as a building block for metal-organic frameworks (MOFs) due to its strong coordinating ability.
• Analytical Chemistry: Used as a complexing agent in titrations and for the selective precipitation of metal ions in laboratory analysis.

Basic Information

Product Name	1,4-Benzenebisphosphonic Acid
CAS No.	880-68-2
Molecular Formula	C6H10O6P2
Molecular Weight	252.09 g/mol
Synonyms	p-Benzenediphosphonic Acid; 1,4-Phenylenebis(phosphonic Acid); Benzene-1,4-diylbis(phosphonic Acid); Terephthalylbis(phosphonic Acid); PBPA; p-Phenylenebisphosphonic Acid; 880-68-2; Benzene-1,4-diphosphonic Acid
EINECS	212-925-5

Quality Control

Our 1,4-Benzenebisphosphonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and titration for assay, to ensure it meets exacting specifications. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are provided with every shipment to guarantee traceability and compliance.

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 product is hygroscopic (moisture-sensitive) and should be kept under dry conditions. 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%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
pH (1% Solution)	2.0 - 4.0

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