Description

Pentadecapotassium hydrogen [ethane-1,2-diylbis[[(phosphonatomethyl)imino]ethane-2,1-diyl[(phosphonatomethyl)imino]ethane-2,1-diylnitrilobis(methylene)]]tetrakisphosphonate is a highly effective, multi-dentate chelating agent and scale inhibitor belonging to the class of polyamino polyphosphonates. This compound is engineered to deliver superior performance in controlling scale formation and sequestering problematic metal ions under demanding conditions. It is a critical raw material for formulators in the water treatment, detergent, and industrial cleaning sectors who require reliable, high-performance additives to protect equipment and enhance process efficiency.

Application

• Industrial Water Treatment: Primary application as a high-efficiency scale and corrosion inhibitor in cooling water systems, boiler water treatment, and reverse osmosis membranes.
• Detergent & Cleaning Formulations: Key builder and sequestrant in industrial and institutional cleaning products, liquid soaps, and dishwashing detergents to inactivate water hardness ions (Ca²⁺, Mg²⁺).
• Pulp & Paper Industry: Used in bleaching processes and as a dispersant to control scale in digesters and paper machines, improving operational efficiency.
• Oilfield Chemicals: Employed in scale squeeze treatments and as a component in drilling fluids to prevent mineral scale deposition in downhole and surface equipment.
• Textile Processing: Acts as a chelating agent in dyeing and bleaching baths to prevent metal-ion interference and improve color fastness and fabric quality.
• Personal Care: Formulation ingredient in certain personal care products where chelation of trace metals is required for stability.

Basic Information

Product Name	Pentadecapotassium hydrogen [ethane-1,2-diylbis[[(phosphonatomethyl)imino]ethane-2,1-diyl[(phosphonatomethyl)imino]ethane-2,1-diylnitrilobis(methylene)]]tetrakisphosphonate
CAS No.	93892-88-7
Molecular Formula	C22H28K15N6O28P8 (Potassium salt form)
Molecular Weight	Contact for details
Synonyms	Pentapotassium Ethylenediamine Tetra(methylene phosphonate) (Partial K-salt); Potassium salt of EDTMP; K-EDTMP; Ethylenediaminetetrakis(methylenephosphonic acid) potassium salt; Polyamino polyphosphonate K-salt; Dequest® 2051 (similar type); Water treatment scale inhibitor 93892-88-7; Phosphonate chelating agent K15
EINECS	Contact for details

Quality Control

Our production of pentadecapotassium hydrogen polyphosphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. The product is manufactured under a system compliant with ISO 9001 quality standards. Comprehensive analytical testing, including assay, pH, and active content determination, is performed. A Certificate of Analysis (COA) documenting key specifications is provided with each shipment to support your quality assurance 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 may lead to caking or reduced handling properties.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Active Content (as acid)	≥ 25.0 %
pH (1% aqueous solution)	6.0 - 8.0
Density (20°C)	1.25 - 1.35 g/cm³
Color (Hazen)	≤ 100
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.