DTPMP or diethylenetriamine penta(methylene phosphonic acid) is a phosphonic acid. It has chelating and anti corrosion properties.
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Names | |
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Preferred IUPAC name {[(Phosphonomethyl)azanediyl]bis[ethane-2,1-diylnitrilobis(methylene)]}tetrakis(phosphonic acid) | |
Other names DTPMPA, Diethylenetriaminepenta(methylene-phosphonic acid) | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.036.287 |
PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
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Properties | |
C9H28N3O15P5 | |
Molar mass | 573.20 |
Appearance | solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Properties
DTPMP is normally delivered as salts, because the acid form has very limited solubility in water and tends to crystallize in concentrated aqueous solutions. It is a nitrogenous organic polyphosphonic acid. It shows very good inhibition of the precipitation of barium sulfate (BaSO4). At high alkali and high temperature (above 210 °C) environments DTPMPA has better scale and corrosion inhibition effect than other phosphonates.
Applications
- Detergents and cleaning agents
- Water treatment
- Scaling inhibitor
- Chelating agent
- Deflocculation agent / settling retarder
- Anti corrosion agent
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