Description

Tridecasodium Hydrogen [[(Phosphonatomethyl)Imino]Bis[Ethylene[(Phosphonatomethyl)Imino]Ethylenenitrilobis(Methylene)]]Tetrakisphosphonate is a high-performance, multi-dentate phosphonate-based chelating agent and scale inhibitor. This compound is engineered for superior sequestration of di- and trivalent metal ions, particularly calcium, magnesium, and iron, under challenging conditions. It is essential for industries requiring robust water treatment, process stabilization, and mineral scale prevention in high-temperature and high-pH environments.

Application

• Industrial Water Treatment: Primary scale and corrosion inhibitor in cooling water systems, boilers, and reverse osmosis membranes.
• Detergent & Cleaning Formulations: Builder and sequestrant to enhance cleaning efficiency by inactivating water hardness ions.
• Pulp & Paper Processing: Peroxide stabilizer and chelant in bleaching stages to improve pulp brightness and process efficiency.
• Textile Manufacturing: Stabilizer for hydrogen peroxide bleaching baths and prevention of metal-ion catalyzed fiber damage.
• Oilfield Applications: Scale inhibitor in squeeze treatments and production tubing to prevent carbonate and sulfate scale deposition.
• Personal Care Products: Chelating agent in shampoos, soaps, and lotions to stabilize formulations and improve shelf life.
• Metal Surface Treatment: Additive in plating baths and pickling solutions to control metal ions and improve surface quality.

Basic Information

Product Name	Tridecasodium Hydrogen [[(Phosphonatomethyl)Imino]Bis[Ethylene[(Phosphonatomethyl)Imino]Ethylenenitrilobis(Methylene)]]Tetrakisphosphonate
CAS No.	93939-89-0
Molecular Formula	C17H36N5O24P6Na13 (or related sodium salt form)
Molecular Weight	Contact for details
Synonyms	Tridecasodium salt of PBTC; Phosphonobutane Tricarboxylic Acid, Sodium Salt (related); 1,2,4-Butanetricarboxylic acid, 2-phosphono-, tridecasodium salt; PBTC-Na13; Hydroxyphosphonoacetic acid oligomer sodium salt; Amino tris(methylenephosphonic acid) sodium salt derivative; Phosphonate scale inhibitor 93939-89-0; Multi-phosphonate chelating agent
EINECS	Contact for details

Quality Control

Our Tridecasodium Hydrogen [[(Phosphonatomethyl)Imino]Bis[Ethylene[(Phosphonatomethyl)Imino]Ethylenenitrilobis(Methylene)]]Tetrakisphosphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance and compliance with industry standards for chelating agents and water treatment chemicals. Certificates of Analysis (COA) detailing assay, active content, pH, and impurity profiles are available upon request.

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 may lead to caking or reduced efficacy.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Assay (Active Content)	≥ 45% (Liquid) / ≥ 95% (Solid)
pH (1% aqueous solution)	6.0 - 8.0
Density (20°C, liquid)	1.30 - 1.40 g/cm³
Identification (IR)	Conforms
Iron (Fe)	≤ 10 ppm
Chloride (Cl)	≤ 50 ppm

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