Diethylenetriaminepenta(methylene-phosphonic acid) CAS 15827-60-8
A high-performance water treatment chemical and industrial additive with exceptional scale and corrosion inhibition properties.
Chemical Properties
DTPMP is typically delivered as salts due to the acid form's limited water solubility and tendency to crystallize in concentrated aqueous solutions. This nitrogenous organic polyphosphonic acid demonstrates superior inhibition of barium sulfate (BaSO₄) precipitation and offers enhanced scale and corrosion inhibition in high-alkali, high-temperature environments exceeding 210°C compared to other phosphonates.
Applications & Uses
- Water treatment formulations and industrial water systems
- Detergent and personal care product additives
- Industrial and institutional cleaning compounds
- Oil field additives for scale inhibition
- Textile processing as peroxide bleach stabilizer
- Leather auxiliary chemicals
- Component in phosphorous-containing nanoparticles and materials
- Research applications for studying crystallization dynamics and kinetics
Performance Advantages
Exceptional Scale Inhibition
DTPMP serves as an excellent threshold scale inhibitor for carbonate, sulfate, and phosphate scales, effectively preventing scale formation at extremely low dosage levels (ppm) through sub-stoichiometric concentrations.
Superior Metal Sequestration
As an organophosphonate, it demonstrates excellent sequestration of metal ions at stoichiometric concentrations, forming stable complexes that prevent scale formation.
Enhanced Stability
Offers excellent hydrolytic and thermal stability across wide pH ranges and elevated temperatures, making it ideal for high-temperature industrial applications.
Technical Definition
Diethylenetriamine five methene phosphoric acid is a widely used corrosion inhibiting and descaling agent. Appearance: brown or red-brown thick liquid. Nontoxic. Molecular formula: C₉H₂₈O₁₅N₃P₅. Molecular weight: 573.2. Soluble in acidic solutions, it forms polynary ring chelate compounds with metal ions in aqueous solutions, effectively dispersing in water and disrupting the crystalline growth of calcium salts such as carbonate and sulfate scales.
General Description
Diethylenetriaminepentakis(methylphosphonic acid) (DTPMP) is a multidentate chelating agent commonly used as crystallization inhibitors in various industrial processes. Its hydrogen peroxide oxidation properties and phosphonate characteristics make it valuable across multiple applications including water treatment, oil field operations, and industrial cleaning.
