DTPMP

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

DTPMP

Names
Preferred IUPAC name {[(Phosphonomethyl)azanediyl]bis[ethane-2,1-diylnitrilobis(methylene)]}tetrakis(phosphonic acid)
Other names DTPMPA, Diethylenetriaminepenta(methylene-phosphonic acid)
Identifiers
CAS Number	15827-60-8 Y
3D model (JSmol)	Interactive image
ChemSpider	76777 Y
ECHA InfoCard	100.036.287
PubChem CID	85128
UNII	0Q75589TM3 Y
CompTox Dashboard (EPA)	DTXSID0027775
InChI 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) Y Key: DUYCTCQXNHFCSJ-UHFFFAOYSA-N Y 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
SMILES O=P(O)(O)CN(CP(=O)(O)O)CCN(CCN(CP(=O)(O)O)CP(=O)(O)O)CP(=O)(O)O
Properties
Chemical formula	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). Y verify (what is YN ?) Infobox references

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