Description

Tetrasodium [[(2-Hydroxyethyl)Imino]Bis(Methylene)]Bisphosphonate is a highly effective chelating agent and scale inhibitor belonging to the phosphonate family. Its primary value lies in its exceptional ability to sequester di- and trivalent metal ions, such as calcium and magnesium, preventing scale formation and corrosion in aqueous systems. This makes it a critical component for industrial water treatment, oilfield applications, and detergent formulations where process efficiency and equipment longevity are paramount.

Application

• Industrial Water Treatment: Key ingredient in cooling water and boiler water treatment programs to control scale and inhibit corrosion.
• Oilfield Chemicals: Used in scale squeeze treatments and as a component in drilling and completion fluids to prevent mineral scale deposition in wells and pipelines.
• Detergent & Cleaning Formulations: Acts as a builder and chelant in industrial and institutional cleaning products to enhance surfactant performance and prevent soap scum.
• Pulp & Paper Processing: Employed as a chelating agent in bleaching processes to stabilize peroxides and improve brightness.
• Textile Processing: Used to sequester metal ions in dyeing and finishing baths, ensuring consistent color quality and preventing stains.
• Personal Care Products: Functions as a chelant in shampoos, liquid soaps, and other formulations to improve stability and shelf life.

Basic Information

Product Name	Tetrasodium [[(2-Hydroxyethyl)Imino]Bis(Methylene)]Bisphosphonate
CAS No.	32422-03-0
Molecular Formula	C6H12NNa4O10P2
Molecular Weight	403.06 g/mol
Synonyms	Tetrasodium Hydroxyethylidene Diphosphonate (HEDP·Na4); Tetrasodium Etidronate; Tetrasodium (1-Hydroxyethylidene)bisphosphonate; Dequest 2016; Briquest ADPA-60SH; HEDP Tetrasodium Salt; Phosphonic acid, (1-hydroxyethylidene)bis-, tetrasodium salt; PBTC precursor
EINECS	251-055-5

Quality Control

Our Tetrasodium [[(2-Hydroxyethyl)Imino]Bis(Methylene)]Bisphosphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for active content, pH, and impurity profiles. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing the results for key parameters to guarantee consistency and performance for your application.

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). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may lead to caking or reduced efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or granules
Assay (Active Content)	≥ 95.0%
pH (1% aqueous solution)	10.0 - 12.0
Identification (IR)	Conforms
Water Content	≤ 5.0%
Chloride (as Cl)	≤ 0.1%
Iron (Fe)	≤ 10 ppm

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