Description

Hdtmpa CAS NO 23605-74-5 is a high-purity, multifunctional phosphonic acid derivative valued for its excellent chelating and scale inhibition properties. This compound is critical for industrial processes where control over metal ions and prevention of inorganic deposits is paramount. It is primarily sought by manufacturers in the water treatment, detergent, and textile processing industries for formulating high-performance additives and cleaning agents.

Application

• Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling water systems, boilers, and reverse osmosis membranes.
• Detergent & Cleaning Formulations: Serves as a powerful builder and sequestrant to enhance cleaning efficiency by inactivating water hardness ions (Ca²⁺, Mg²⁺).
• Textile Processing: Used as a chelating agent in dyeing and bleaching baths to prevent metal-ion interference and improve color fastness.
• Pulp & Paper Industry: Employed in bleaching sequences to stabilize peroxides and chelate transition metals that degrade cellulose.
• Oilfield Chemicals: Incorporated into drilling fluids and scale squeeze treatments to control mineral scaling in downhole equipment.
• Industrial Cleaning: Formulated into acidic cleaners for metal surfaces and equipment to prevent re-deposition of dissolved salts.
• Personal Care: Used in select cosmetic formulations as a stabilizer and chelating agent.

Basic Information

Item	Detail
Product Name	Hdtmpa
CAS No.	23605-74-5
Molecular Formula	C9H28N3O15P6
Molecular Weight	685.23 g/mol
Synonyms	Hexamethylenediaminetetra(methylenephosphonic acid); Dequest 2051; 1,6-Hexamethylenediamine-N,N,N',N'-tetrakis(methylenephosphonic acid); HMDTMPA; HDTMPA; HDTMP; Phosphonic acid, [[(phosphonomethyl)imino]bis[2,1-ethanediylnitrilobis(methylene)]]tetrakis-; Amino tris(methylene phosphonic acid) hexamethylene diamine derivative
EINECS	Contact for details

Quality Control

Our Hdtmpa is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high performance. Production adheres to relevant ISO standards, and each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, assay, and key impurity profiles. We support our clients' regulatory needs with full traceability and documentation.

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). Keep away from strong bases and oxidizing agents. As a strong acid/organic solvent, ensure containers are clearly labeled and handling is performed with appropriate personal protective equipment.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Assay (as acid)	≥ 50.0 %
Active Content (HDTMPA)	≥ 95.0 %
pH (1% aqueous solution)	≤ 2.0
Density (20°C)	1.30 - 1.45 g/cm³
Chloride (as Cl⁻)	≤ 0.5 %
Iron (Fe)	≤ 10 ppm

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