View source for EDTMP

{{chembox
| Watchedfields = changed
| verifiedrevid = 443718549
| ImageFile = EDTMP.png
| PIN={Ethane-1,2-diylbis[nitrilobis(methylene)]}tetrakis(phosphonic acid)
| OtherNames=Ethylenediamine tetra(methylene phosphonic acid), EDTMP
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 14301
| InChI = 1/C6H20N2O12P4/c9-21(10,11)3-7(4-22(12,13)14)1-2-8(5-23(15,16)17)6-24(18,19)20/h1-6H2,(H2,9,10,11)(H2,12,13,14)(H2,15,16,17)(H2,18,19,20)
| InChIKey = NFDRPXJGHKJRLJ-UHFFFAOYAV
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C6H20N2O12P4/c9-21(10,11)3-7(4-22(12,13)14)1-2-8(5-23(15,16)17)6-24(18,19)20/h1-6H2,(H2,9,10,11)(H2,12,13,14)(H2,15,16,17)(H2,18,19,20)
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = NFDRPXJGHKJRLJ-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo= 1429-50-1
| PubChem = 15025
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = V4CP8RSX7V
| SMILES = O=P(O)(O)CN(CP(=O)(O)O)CCN(CP(=O)(O)O)CP(=O)(O)O
}}
|Section2={{Chembox Properties
| Formula=C<sub>6</sub>H<sub>20</sub>N<sub>2</sub>O<sub>12</sub>P<sub>4</sub>
| MolarMass = 436.13
| Appearance= solid
| Density=
| MeltingPt=
| BoilingPt=
| Solubility= limited
}}
|Section3={{Chembox Hazards
| MainHazards=
| FlashPt=
| AutoignitionPt =
}}
}}
'''EDTMP''' or '''ethylenediamine tetra(methylene phosphonic acid) ''' is a [[phosphonic acid]]. It has [[chelate|chelating]] and anti corrosion properties. EDTMP is the phosphonate analog of [[EDTA]].<ref name=Svara>Svara, J.; Weferling, N.; Hofmann, T. "Phosphorus Compounds, Organic," In 'Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2008. {{doi|10.1002/14356007.a19_545.pub2}}.</ref> It is classified as a nitrogenous organic polyphosphonic acid.
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==Properties and applications==
EDTMP is normally delivered as its sodium salt, which exhibits good solubility in water.
Used in [[Water treatment]] as an anti[[Fouling|scaling]] and [[anti corrosion]] agent, the corrosion inhibition of EDTMP is 3–5 times better than that of inorganic [[polyphosphate]].  It can degrade to [[Aminomethylphosphonic acid]].<ref name="y558">{{cite journal | last=Klinger | first=J. | last2=Lang | first2=M. | last3=Sacher | first3=F. | last4=Brauch | first4=H.-J. | last5=Maier | first5=D. | last6=Worch | first6=E. | title=Formation of Glyphosate and AMPA During Ozonation of Waters Containing Ethylenediaminetetra(methylenephosphonic acid) | journal=Ozone: Science & Engineering | volume=20 | issue=2 | date=1998 | issn=0191-9512 | doi=10.1080/01919519808547279 | pages=99–110}}</ref> It shows excellent scale inhibition ability under temperature 200&nbsp;°C.  It functions by chelating with many metal ions.
The anti-cancer drug [[Samarium (153Sm) lexidronam|Samarium (<sup>153</sup>Sm) lexidronam]] is also derived from EDTMP.
==References==
<references />
[[Category:Phosphonic acids]]
[[Category:Chelating agents]]
[[Category:Tertiary amines]]
[[Category:Ethyleneamines]]
[[Category:Corrosion inhibitors]]
[[Category:Water treatment]]
[[Category:Hexadentate ligands]]