Description

Phosphonic Acid CAS NO 255042-45-6 is a versatile organophosphorus compound valued for its chelating and scale-inhibiting properties. It serves as a critical intermediate and functional additive in numerous industrial processes where metal ion control and surface treatment are paramount. This chemical is essential for manufacturers in the water treatment, metal finishing, and specialty chemical synthesis sectors seeking reliable performance and supply chain stability.

Application

• Water Treatment: Acts as a highly effective scale and corrosion inhibitor in industrial cooling and boiler water systems.
• Metal Surface Treatment: Used in formulations for cleaning, pickling, and phosphating baths to prevent metal oxide scale and improve surface quality.
• Chemical Synthesis: Serves as a key building block for the production of phosphonate-based chelants, flame retardants, and pharmaceutical intermediates.
• Pulp & Paper Industry: Functions as a chelating agent in bleaching processes to stabilize peroxides and improve brightness.
• Detergents and Cleaners: Incorporated as a builder to sequester hardness ions like calcium and magnesium, enhancing cleaning efficiency.
• Oilfield Chemicals: Applied in scale inhibition for downhole and topside equipment to maintain flow assurance.

Basic Information

Product Name	Phosphonic Acid
CAS No.	255042-45-6
Molecular Formula	C3H9O6P3
Molecular Weight	246.04 g/mol
Synonyms	Aminotris(methylenephosphonic acid); ATMP; Nitrilotris(methylene)triphosphonic acid; Dequest 2000; Phosphonic acid, (nitrilotris(methylene))tris-; NTF; Amino tris(methylene phosphonic acid); Nitrilotrimethylphosphonic acid
EINECS	Contact for details

Quality Control

Our Phosphonic Acid is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests including titration, HPLC, and spectroscopic methods. A Certificate of Analysis (COA) documenting key parameters such as assay, active content, and impurity profiles is provided with each shipment to guarantee compliance with your technical requirements.

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); ensure containers are kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Assay (Active Content)	≥ 50%
pH (1% aqueous solution)	1.5 - 2.5
Density (20°C)	1.30 - 1.40 g/cm³
Chloride (as Cl)	≤ 0.5%
Iron (as Fe)	≤ 10 ppm

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