Description

Phosphonic Acid, Disodium Salt is a versatile organophosphorus compound widely used as a high-performance chelating and scale inhibition agent. Its primary value lies in its exceptional ability to bind metal ions, particularly calcium and magnesium, making it crucial for preventing scale formation and corrosion in industrial water systems. This product is essential for manufacturers and operators in the water treatment, detergent, and textile processing industries who require reliable and efficient sequestrants.

Application

• Industrial Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis systems.
• Detergent & Cleaning Formulations: Serves as a powerful builder and chelating agent to enhance cleaning efficiency by sequestering water hardness ions.
• Textile Processing: Used in bleaching and dyeing baths to stabilize peroxides and prevent metal-ion catalyzed degradation of fabrics.
• Pulp & Paper Manufacturing: Employed as a peroxide stabilizer and sequestrant in bleaching processes to improve pulp brightness and yield.
• Oilfield Applications: Functions as a scale inhibitor in squeeze treatments to prevent mineral scale deposition in wellbores and production equipment.
• Personal Care Products: Incorporated as a chelating agent in shampoos and liquid soaps to improve stability and performance.

Basic Information

Product Name	Phosphonic Acid, Disodium Salt
CAS No.	13708-85-5
Molecular Formula	C H4Na2O5P
Molecular Weight	183.98 g/mol
Synonyms	Disodium Phosphonate; Disodium Hydrogen Phosphonate; Phosphonic Acid, Disodium Salt; Disodium H-Phosphonate; H-Phosphonic Acid Disodium Salt; Disodium Phosphite; Dequest 2010 (Trade Name); Briquest 301-30A (Trade Name)
EINECS	237-267-9

Quality Control

Our Phosphonic Acid, Disodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key parameters such as assay, pH, and heavy metal content. Our quality commitment ensures batch-to-batch consistency and reliability for your critical industrial processes.

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 material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can lead to caking or reduced efficacy.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (5% Solution)	4.0 - 6.0
Water Content	≤ 2.0 %
Chloride (as Cl)	≤ 0.01 %
Sulfate (as SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm

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