DTPMP

DTPMP
Names
	IUPAC name [[(Phosphonomethyl)imino]]bis[[2,1-ethanediylnitrilobis(methylene)]]tetrakis-phosphonic acid
	Other names DTPMPA, Diethylenetriaminepenta(methylene-phosphonic acid)
Identifiers
CAS Number	15827-60-8 ;
3D model (JSmol)	Interactive image;
ChemSpider	76777 ;
ECHA InfoCard	100.036.287
PubChem CID	85128;
	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) Key: DUYCTCQXNHFCSJ-UHFFFAOYSA-N ; 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	573.20
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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	Infobox references

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

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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