Description

Phosphonic Acid CAS NO 41162-15-6 is a versatile organophosphorus compound characterized by its unique phosphonate functional group. This chemical is a critical intermediate and functional additive valued for its chelating and scale-inhibiting properties. It is essential for manufacturers in sectors requiring precise control over water chemistry and metal ion interactions. Key industries that rely on this product include water treatment, industrial cleaning, and specialty chemical synthesis.

Application

• Water Treatment: Acts as an effective scale and corrosion inhibitor in cooling water systems, boilers, and reverse osmosis membranes.
• Industrial Cleaning Formulations: Serves as a key chelating agent and sequestrant in acidic cleaners and detergents for removing mineral deposits.
• Chemical Synthesis: Used as a crucial building block for producing flame retardants, pharmaceuticals, and other organophosphorus derivatives.
• Pulp & Paper Industry: Functions as a stabilizer and chelant in bleaching processes and paper production to control metal ions.
• Textile Processing: Employed as a stabilizer and sequestrant in dyeing and finishing operations to improve color quality and process stability.
• Oilfield Chemicals: Utilized in scale inhibitor formulations for downhole and topside applications to prevent mineral scale formation.

Basic Information

Product Name	Phosphonic Acid
CAS No.	41162-15-6
Molecular Formula	C3H9O6P
Molecular Weight	172.07 g/mol
Synonyms	1-Hydroxyethane-1,1-diphosphonic Acid; HEDP; Etidronic Acid; (1-Hydroxyethylidene)bisphosphonic Acid; Dequest 2010; Unihib 106; Phosphonic acid, (1-hydroxyethylidene)bis-; EHDP
EINECS	255-263-4

Quality Control

Our Phosphonic Acid is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive quality assurance, including testing against established internal specifications for assay, impurity profiles, and physical parameters. A Certificate of Analysis (COA) is supplied with each shipment, detailing all relevant test results. Our quality commitment supports compliance with global regulatory frameworks, including REACH.

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); containers must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Assay (Titration)	≥ 60.0%
pH (1% aqueous solution)	1.5 - 2.5
Density (20°C)	1.40 - 1.50 g/cm³
Chloride (as Cl)	≤ 0.01%
Iron (as Fe)	≤ 10 ppm

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