- ▸ Scale inhibitor: Controls carbonate and sulfate scale in water systems.
- ▸ Chelating agent: Sequesters calcium, magnesium, and metal ions.
- ▸ Detergent builder: Sequestrant in dishwashing and laundry formulations.
- ▸ Industrial water treatment: Stabilizes cooling and process waters.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →EDTMPS (CAS 1429-50-1) is the sodium salt of ethylenediamine tetra(methylenephosphonic acid), an aminophosphonate chelating and scale-inhibiting agent. It sequesters calcium, magnesium, and transition-metal ions and is used in water treatment, detergents, and industrial cleaning to control scale and stabilize formulations.
Frequently Asked Questions
Are ethylenediamine, EDTA, and EDTMPS the same?
No. EDTMPS (CAS 1429-50-1) is the sodium salt of ethylenediamine tetra(methylenephosphonic acid) — an aminophosphonate chelating and scale-inhibiting agent. It differs from EDTA, which is an aminocarboxylate, and from ethylenediamine, the simple diamine. EDTMPS uses phosphonate groups rather than carboxylate groups to sequester metal ions.
What is EDTMPS used for?
EDTMPS is used as a scale inhibitor for carbonate and sulfate scale in water systems, a chelating agent that sequesters calcium, magnesium, and transition-metal ions, a detergent builder/sequestrant in dishwashing and laundry formulations, and a stabilizer in cooling and process waters.
What does EDTMPS chelate?
EDTMPS sequesters calcium, magnesium, and transition-metal ions via its four methylenephosphonic acid groups. This is what gives it scale-control and formulation-stabilizing function in industrial water treatment and cleaning systems.
What is the CAS number and form supplied?
The CAS number is 1429-50-1 (sodium salt; formula C6H20N2O12P4). RawSource supplies it in bulk — typically as an aqueous solution — with CoA and SDS provided. Specify active concentration and volume when requesting documentation.
What is the cost of bulk EDTMPS?
Pricing depends on active concentration, packaging, and volume. Submit a bulk RFQ with your specification and quantity for a current quote; we do not publish spot prices.