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Ethylenediaminetetra(methylenephosphonic acid)

CAS Number
1429-50-1
EC Number
215-851-5
Chemical Formula
C6H20N2O12P4
Molecular Weight
436.12 g/mol
Industries:Textile, Leather & PaperMining & MetalsCoatings, Adhesives, Sealants & ElastomersOil, Gas & EnergyLubricants & MetalworkingWater Treatment

Description

Ethylenediaminetetra(methylenephosphonic acid) (CAS 1429-50-1 ), commonly known as EDTMP , is a phosphonate chelating agent used across industrial water treatment, oilfield chemistry, and process industries. It binds calcium, magnesium, iron, and other metal ions to prevent scale formation and inhibit corrosion in high-temperature, high-hardness water systems. In water treatment and cooling water systems, it controls calcium carbonate scale. The chemical effectively manages calcium sulfate scale deposition, extending equipment service life in boilers and heat exchangers. Oilfield operators use it as a scale inhibitor and corrosion control additive in injection water. It is also utilized in produced water handling to maintain system integrity. In textile and paper processing, it sequesters hardness ions and trace metals that would otherwise interfere with bleaching and dyeing operations. Coatings and cleaning formulations incorporate this agent to stabilize peroxide-based systems and prevent metal-catalyzed decomposition. This ensures the longevity and effectiveness of various industrial chemical formulations. The product is supplied as an aqueous solution, typically at concentrations around 20–50%, and is also available in solid form for applications requiring dry blending or concentrated dosing for specific needs. Technical grade is the standard commercial offering, with specifications aligned to industrial water treatment and oilfield end uses. Purity and active content are the primary quality parameters buyers should confirm. Ensuring the product meets necessary industrial requirements is essential for performance. Suppliers provide detailed specifications to ensure the material is suitable for high-demand chemical processing environments. Contact us for supply of Ethylenediaminetetra(methylenephosphonic acid) Request Quote

Other Names (Synonyms)

[2-[bis(phosphonomethyl)amino]ethyl-(phosphonomethyl)amino]methylphosphonic acid | EDTMP

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point247 °C
Boiling Point878.7±75.0 °C(Predicted)
Density1.993±0.06 g/cm3(Predicted)
ColorWhite
FormSolid
Water Solubility19.6g/L at 20℃
Vapor Pressure0Pa at 25℃
Log P-4.1

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29212900