Description

Bis(Hexamethylene)Triaminopenta(Methylene-Phosphonic Acid) is a high-performance, nitrogen-containing organic phosphonic acid scale and corrosion inhibitor. This compound is valued for its exceptional chelating power and thermal stability, making it highly effective in controlling scale formation under demanding conditions. It is a critical component for industrial water treatment, oilfield applications, and detergent formulations where superior sequestration of metal ions like calcium, magnesium, and iron is required.

Application

• Industrial Water Treatment: Primary application as a highly effective scale and corrosion inhibitor in cooling water systems, boiler water, and reverse osmosis membranes.
• Oilfield Chemistry: Used in squeeze treatments and as an additive in drilling and completion fluids to prevent mineral scale deposition in downhole equipment and formations.
• Detergent & Cleaning Formulations: Acts as a powerful builder and sequestrant to enhance cleaning efficiency by inactivating water hardness ions.
• Pulp & Paper Industry: Employed in bleaching processes and as a dispersant to control scale and improve process efficiency.
• Textile Processing: Used as a chelating agent in dyeing and bleaching baths to prevent metal-ion interference and improve color fastness.
• Metal Surface Treatment: Functions as a corrosion inhibitor and sequestrant in pickling and plating baths.

Basic Information

Product Name	Bis(Hexamethylene)Triaminopenta(Methylene-Phosphonic Acid)
CAS No.	35657-77-3
Molecular Formula	C17H44N3O15P5
Molecular Weight	685.4 g/mol
Synonyms	BHMT Phosphonate; DTPMP·NH4 (Ammonium salt form); Bis-hexamethylenetriamine-penta(methylenephosphonic acid); Hexamethylenediamine-N,N,N',N'-tetrakis(methylenephosphonic acid); Phosphonic acid, [[(phosphonomethyl)imino]bis[2,1-ethanediylnitrilobis(methylene)]]tetrakis-; Dequest 2066 (Trade Name); BHMTPMPA; BHPMP
EINECS	Contact for details

Quality Control

Our production of Bis(Hexamethylene)Triaminopenta(Methylene-Phosphonic Acid) adheres to stringent quality management protocols. Every batch is analyzed to ensure consistent performance and purity, with specifications aligned with industry standards for water treatment chemicals. A comprehensive Certificate of Analysis (COA) detailing assay, pH, density, and active content is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids and oxidizing agents. The product is typically supplied as an aqueous solution; protect from freezing.

Specification

Item	Specification
Appearance	Clear to slightly yellow aqueous solution
Active Content (as acid)	≥ 50%
pH (1% aqueous solution)	1.5 - 2.5
Density (20°C)	1.30 - 1.40 g/cm³
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.