Product Description
DTPMPA is a high-performance organophosphonate with excellent scale and corrosion inhibition properties. It is readily soluble in acidic solutions and offers outstanding thermal stability.
DTPMPA is particularly effective in controlling the formation of carbonate and sulfate scale. Compared with many other organophosphonates, it maintains excellent scale and corrosion inhibition performance under high-temperature and alkaline conditions, including temperatures above 210°C.
In industrial water treatment, DTPMPA is widely used as a scale and corrosion inhibitor for circulating cooling water and boiler water systems.
It is particularly suitable for alkaline circulating cooling water systems operated without pH adjustment, where it can provide effective scale and corrosion control.
DTPMPA is also suitable for oilfield water injection systems, cooling water, and boiler water where high levels of barium carbonate or other scale-forming ions may be present.
When used as part of a formulated water treatment program, DTPMPA can provide effective scale control without the need for an additional dispersant, while maintaining low levels of scale deposition.
Product Parameters
| Item | Specification |
| Appearance | Brownish-yellow to brownish-red viscous liquid |
| Active Component, % | ≥50.0 |
| Phosphite (as PO₃³⁻), % | ≤3.0 |
| Chloride (as Cl⁻), % | 14.0–17.0 |
| Iron (as Fe²⁺), mg/L | ≤20.0 |
| Density at 20°C, g/cm³ | ≥1.35 |
| pH (1% aqueous solution) | ≤2.0 |
| Calcium Chelation Value (as CaCO₃), mg/g | ≥450 |
Recommended Dosage
For scale inhibition, the typical dosage of DTPMPA is 1–30 mg/L, depending on water quality and operating conditions.
For cleaning applications, the typical dosage is 1,000–2,000 mg/L.
DTPMPA is commonly used in combination with polycarboxylic acid-based scale inhibitors and dispersants to improve overall scale control and water treatment performance.
For applications in other industries, the optimum dosage should be determined through laboratory testing and application trials.
Application Scenarios
DTPMPA has a broad range of industrial applications, including:
Water Treatment
· Scale and corrosion inhibitor for industrial circulating cooling water
· Scale and corrosion inhibitor for boiler water treatment
· Water treatment in alkaline cooling water systems
· Scale control in oilfield water injection systems
· Applications involving high levels of barium carbonate and other mineral scales
Industrial & Specialty Applications
DTPMPA can also be used as:
· Peroxide stabilizer, particularly for hydrogen peroxide under high-temperature conditions
· Chelating agent in textile processing and dyeing
· Dispersant for pigments
· Stabilizer for oxygen delignification in the pulp and paper industry
· Micronutrient carrier in fertilizer formulations
· Concrete additive
· Stabilizer for oxidative biocides
It is also widely used in paper manufacturing, electroplating, metal pickling, and cosmetic formulations.
