Ethylenediaminetetra(methylenephosphonic acid)
CAS 1429-50-1
EC 215-851-5
Formula C6H20N2O12P4
MW 756.04 g/mol
Chelating Agents Water TreatmentLubricants & MetalworkingOil, Gas & EnergyCoatings, Adhesives, Sealants & ElastomersMining & MetalsTextile, Leather & Paper Chelation & SequestrationFlame RetardancyCorrosion InhibitionCatalysisCleaning & Degreasing
Description
Ethylenediaminetetra(methylenephosphonic acid), commonly abbreviated as EDTMP or EDTPO and also known by the trade name Lexidronam, is a phosphonate-based chelating agent registered under CAS 1429-50-1 and EC 215-851-5. It carries no assigned E-code and is classified under HS code 29212900.
In water treatment, EDTMP inhibits scale formation and corrosion by binding calcium, magnesium, and heavy metal ions through its four phosphonate groups, preventing precipitation on pipe surfaces. In textile and paper processing, it sequesters metal ions that would otherwise catalyse oxidative degradation of bleaching baths, extending process stability and product consistency.
EDTMP is supplied as a solid and is available in technical and industrial grades suited to water treatment, oilfield, and metalworking applications. The substance is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm grade specifications and SDS documentation prior to ordering.
In water treatment, EDTMP inhibits scale formation and corrosion by binding calcium, magnesium, and heavy metal ions through its four phosphonate groups, preventing precipitation on pipe surfaces. In textile and paper processing, it sequesters metal ions that would otherwise catalyse oxidative degradation of bleaching baths, extending process stability and product consistency.
EDTMP is supplied as a solid and is available in technical and industrial grades suited to water treatment, oilfield, and metalworking applications. The substance is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm grade specifications and SDS documentation prior to ordering.
Physical Properties
| Melting Point | 247 °C |
| Boiling Point | 878.7±75.0 °C(Predicted) |
| Density | 1.993±0.06 g/cm3(Predicted) |
| Color | White |
| Form | Solid |
| Water Solubility | 19.6g/L at 20℃ |
| Vapor Pressure | 0Pa at 25℃ |
| Log P | -4.1 |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29212900 |
Other Names
EDTMPLexidronamethylenediamine tetra(methylene phosphonic acid)diethylenetriamine penta(methylene phosphonic acidEDTPOEthylenediaminotetra(methylenephosphonic acid)Ethylenediaminetetrakis(methylphosphonic acid)ETHYLENEDIAMINE TETRA(METHYLENEPHOSPHONIC ACID)
Related Products
Raw Materials
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