DTPMP

Chemical compound From Wikipedia, the free encyclopedia

DTPMP or diethylenetriamine penta(methylene phosphonic acid) is a phosphonic acid. It has chelating and anti-corrosion properties.[1]

Quick facts Names, Identifiers ...
DTPMP
Names
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 Edit this at Wikidata
UNII
  • InChI=1S/C9H28N3O15P5/c13-28(14,15)5-10(1-3-11(6-29(16,17)18)7-30(19,20)21)2-4-12(8-31(22,23)24)9-32(25,26)27/h1-9H2,(H2,13,14,15)(H2,16,17,18)(H2,19,20,21)(H2,22,23,24)(H2,25,26,27) checkY
    Key: DUYCTCQXNHFCSJ-UHFFFAOYSA-N checkY
  • InChI=1/C9H28N3O15P5/c13-28(14,15)5-10(1-3-11(6-29(16,17)18)7-30(19,20)21)2-4-12(8-31(22,23)24)9-32(25,26)27/h1-9H2,(H2,13,14,15)(H2,16,17,18)(H2,19,20,21)(H2,22,23,24)(H2,25,26,27)
    Key: DUYCTCQXNHFCSJ-UHFFFAOYAC
  • O=P(O)(O)CN(CP(=O)(O)O)CCN(CCN(CP(=O)(O)O)CP(=O)(O)O)CP(=O)(O)O
Properties
C9H28N3O15P5
Molar mass 573.198 g·mol−1
Appearance Solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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

References

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