Salts of Phosphonates

Product List

Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents
Salts of Phosphonates
Polycarboxylic Antiscalant and Dispersant
Biocide and Algicide
Reverse Osmosis Chemicals
Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
Corrosion Inhibitors & Oxygen Scavenger
Surfactant & Others

Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) (EDTMP.Na5)

CAS No. 7651-99-2 EINECE NO. 231-615-4
Molecular Formula C6H15O12N2P4Na5 Molecular Weight 546.13
Structural Formula

edtmp.na5 Structural Formula

Product Features

EDTMP.Na5 is pentasodium salt of EDTMPA. EDTMP.Na5 is a cathodic corrosion inhibitor. EDTMP.Na5 shows excellent scale inhibition effects to calcium sulfate and barium sulfate.

EDTMP.Na5 is also recommended for applications in peroxide bleach stabilization and scale control in detergent formulations,Industrial and Institutional (I&I) cleaners, geothermal water treatment, oilfield scale control, cement hardening retardation.

Technical Specification

Parameter Standard
Appearance Amper transparent liquid
Active content (EDTMP.Na5), % 30.0-32.5
Active content (EDTMP), % 24.0-26.0
Chloride (Cl-), % 2.0 max
Density(20℃),g/cm3 1.25 min
Fe,mg/L 20.0 max
PH(1% water solution) 6.0-8.0

Applications & Usage

EDTMP.Na5 can be used as scale and corrosion inhibitor for circulating water and boiler water system, chelating agent in non-cyanide electroplating, water-softening agent in dyeing industry, etc.

Scale and Corrosion inhibition Performance

CaCO3 inhibition CaSO4 inhibition Ca3(PO4)2 inhibition CaC2O4 inhibition BaSO4 inhibition
Good Very Good Very Good Good Very Good
Calcium Tolerance Iron Control Sequestration Steel corrosion inhibition
Good Yes Excellent Very Good

Package & Storage

EDTMP•Na5 Liquid
25L Drum 200L Drum 1000L IBC ISO Tank
25kg Bag 200L Drum packaging
Storage for ten months in shady room and dry place.

Hazard & Safety Precaution

Hazard Information Safety Precaution

Not regulated

Wear protective gloves Wear protective goggles Wear protective clothing

Once contacted with eye and skin, flush with plenty of clean water

Alternative Name / Synonyms

  1. EDTMP pentasodium salt;
  2. Ethylenediamine tetra(methylenephosphonic acid) pentasodium salt;
  3. pentasodium trihydrogen [ethane-1,2-diylbis[nitrilobis(methylene)]]tetrakisphosphonate;
  4. Pentasodium ethylenediamine tetramethylene phosphonate;
  5. Phosphonic acid, 1,2-ethanediylbisnitrilobis(methylene)tetrakis-, pentasodium salt;
  6. Ethylenediamine-N,N,N'',N''-tetrakis-(methylenephosphonic acid) pentasodiums;
  7. Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) (EDTMPNa5);
  8. Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid)
  9. Salts of Phosphonates ( Antiscalants, Corrosion Inhibitors and Chelating Agents )