Description

Phenylphosphonic Acid Sodium Salt is an organophosphorus compound widely utilized as a versatile intermediate and additive. Its significance lies in its ability to impart specific functional properties, such as flame retardancy and metal chelation, in advanced material formulations. This product is essential for manufacturers in the polymer, electronics, and specialty chemical industries seeking to enhance product performance and stability.

Application

• Flame Retardant Synergist: Used in engineering plastics, polyamides, and epoxy resins to improve fire resistance and meet stringent safety standards.
• Polymer Additive: Acts as a stabilizer and processing aid in high-performance polymer production to control viscosity and thermal degradation.
• Metal Surface Treatment: Employed in formulations for metal cleaning, etching, and corrosion inhibition, particularly for ferrous and non-ferrous metals.
• Chelating Agent: Functions in water treatment and industrial cleaning processes to sequester metal ions like calcium and magnesium.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of bioactive molecules and active pharmaceutical ingredients (APIs).
• Electronics Manufacturing: Used in the production of semiconductors and printed circuit boards (PCBs) for surface modification and plating baths.

Basic Information

Product Name	Phenylphosphonic Acid Sodium Salt
CAS No.	4297-94-3
Molecular Formula	C6H6NaO3P
Molecular Weight	180.07 g/mol
Synonyms	Sodium Phenylphosphonate; Benzenephosphonic Acid, Sodium Salt; Phenylphosphonate Sodium Salt; Sodium Phenylphosphonic Acid; Monosodium Phenylphosphonate; Phenylphosphonic Acid Monosodium Salt; Phosphonic Acid, Phenyl-, Monosodium Salt
EINECS	224-310-5

Quality Control

Our Phenylphosphonic Acid Sodium Salt is produced under a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to meet the high standards required for industrial and research applications. Certificates of Analysis (COA) documenting purity, physical properties, and safety data are provided with every shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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