Description

Trisodium Hydrogen [[(2-Hydroxyethyl)Imino]Bis(Methylene)]Bisphosphonate is a high-performance organophosphonate compound widely used as a scale and corrosion inhibitor in industrial water treatment systems. Its unique molecular structure provides excellent chelating and threshold inhibition properties, making it effective at low dosages even in high-hardness and high-temperature conditions. This chemical is essential for industries requiring reliable protection of metal surfaces and heat exchange equipment, including power generation, oil & gas, and chemical manufacturing.

Application

• Industrial Water Treatment: Primary application as a highly effective scale inhibitor for calcium carbonate, calcium sulfate, and barium sulfate in cooling water, boiler water, and reverse osmosis systems.
• Corrosion Inhibition: Functions as a corrosion inhibitor for ferrous and non-ferrous metals (e.g., steel, copper) in closed-loop and open-recirculating cooling systems.
• Oilfield Chemistry: Used in squeeze treatments and as an additive in drilling and completion fluids to control scale formation in downhole equipment and pipelines.
• Detergent & Cleaning Formulations: Acts as a builder and chelating agent in industrial and institutional cleaning products to sequester hardness ions and enhance cleaning efficiency.
• Pulp & Paper Industry: Employed in process water systems to prevent scale deposition on paper machine wires, felts, and dryer cans.
• Textile Processing: Used in dyeing and bleaching baths to sequester metal ions that can cause fabric discoloration or degrade peroxide bleaches.

Basic Information

Product Name	Trisodium Hydrogen [[(2-Hydroxyethyl)Imino]Bis(Methylene)]Bisphosphonate
CAS No.	84215-55-4
Molecular Formula	C5H12NNa3O10P2
Molecular Weight	369.07 g/mol
Synonyms	THHEDP; Trisodium HEDP; Trisodium (1-Hydroxyethylidene)bisphosphonate; Trisodium Etidronate; Sodium HEDP; ATMP-Na3 (related); Aminotris(methylenephosphonic acid) trisodium salt (partial); Dequest 2016 (trade name); 1-Hydroxyethane-1,1-diphosphonic acid trisodium salt; Phosphonic acid, (1-hydroxyethylidene)bis-, trisodium salt
EINECS	Contact for details

Quality Control

Our Trisodium Hydrogen [[(2-Hydroxyethyl)Imino]Bis(Methylene)]Bisphosphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for active content, pH, and impurity profiles. Certificates of Analysis (COA) documenting purity, identity, and key physical-chemical parameters are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or granules
Identification (IR)	Conforms
Assay (Active Content)	≥ 88.0 %
pH (1% aqueous solution)	10.0 - 12.0
Water Content	≤ 12.0 %
Chloride (as Cl)	≤ 0.5 %
Iron (as Fe)	≤ 50 ppm

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