Description

Naphthalene-2,6-Diylbis(Phosphonic Acid) is a high-purity, bifunctional phosphonic acid derivative based on a naphthalene backbone, serving as a versatile and effective chelating agent and metal ion binder. Its molecular structure provides excellent thermal stability and strong coordination properties, making it a critical performance additive in advanced material synthesis. This compound is essential for manufacturers and researchers in the polymer, electronics, and water treatment industries seeking to enhance material properties and process control.

Application

• Polymer Additive & Flame Retardant: Acts as a reactive monomer or additive to impart flame retardancy and improve thermal stability in engineering plastics, polyesters, and polyamides.
• Scale & Corrosion Inhibitor: Used in industrial water treatment formulations for boilers, cooling towers, and desalination plants to control scale formation and inhibit metal corrosion.
• Metal Chelation & Sequestration: Functions as a powerful chelating agent in detergent formulations, textile processing, and pulp & paper bleaching to control metal ions that catalyze degradation.
• Ceramic & Material Precursor: Serves as a phosphorus-containing precursor for sol-gel processes and the synthesis of advanced ceramics, coatings, and metal-organic frameworks (MOFs).
• Electronics & Semiconductor: Employed in cleaning and etching solutions for semiconductor wafers and as an additive in electroplating baths to improve deposit quality.
• Pharmaceutical Intermediate: Utilized in the synthesis of complex molecules, including bisphosphonate drugs and other active pharmaceutical ingredients (APIs).

Basic Information

Product Name	Naphthalene-2,6-Diylbis(Phosphonic Acid)
CAS No.	113305-44-5
Molecular Formula	C₁₀H₁₀O₆P₂
Molecular Weight	312.13 g/mol
Synonyms	2,6-Naphthalenediphosphonic Acid; Naphthalene-2,6-diylbis(phosphonic acid); 2,6-Naphthalene Bisphosphonic Acid; 2,6-NDPA; NDPA; 2,6-Naphthalenediylbis(phosphonic acid); 2,6-Bis(phosphono)naphthalene; Phosphonic acid, P,P'-(2,6-naphthalenediyl)bis-
EINECS	Contact for details

Quality Control

Our Naphthalene-2,6-Diylbis(Phosphonic Acid) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and titration for assay, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment and is available upon request.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

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
Solubility (in water)	Partially soluble

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