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Diethylene Triamine Penta (Methylene Phosphonic Acid) / DTPMPA
DTPMPA is innocuous, easy to be dissolved in acid solution. It has excellent scale and corrosion inhibition and good thermal tolerance ability. DTPMPA can inhibit the scale formation of carbonate, sulfate and phosphate. On situation of alkali environment and high temperature (above 210ºC), DTPMPA has better scale and corrosion inhibition effect than other organophosphines.
| Item | Specification |
|---|---|
| Appearance | Clear amber liquid |
| PH | ≤ 2 |
| Actives, % | 48.0 - 52.0 |
| Fe ppm | ≤ 20 |
| Phosphorous acid as PO3 3- (%) | ≤ 3.0 |
| Density (20ºC) g/cm³ | 1.350 - 1.450 |
| Chloride % | 15.0 - 17.0 |
| Sequestrant value (CaCO3) mg/g | 450 min |
1. Water Treatment: Used as scale and corrosion inhibitor in circulating cool water systems and boiler water, especially in alkali systems without additional pH regulation. Also suitable for oilfield refill water and water with high barium carbonate concentration.
2. Industrial Use: Peroxide stabilizer, chelating agent in woven & dyeing industry, pigment dispersant, microelement's carrying agent in fertilizer and concrete modifier.
3. Other Industries: Widely used in papermaking, electroplating, acid cleaning, and cosmetics.
