EDTMP.Na5

Pentasodium Salt of Ethylene Diamine Tera (Methylene Phosphonic Acid) Sodium

 EDTMP.Na5

CAS No.: 7651-99-2
Molecular Formula: C6H15O12N2P4Na5
Molecular Weight: 546.13

Properties:
EDTMP•Na5 is a neutral solid product. It is nitrogenous organic polyphosphonic acid, which is a part of cathodic corrosion inhibitor. EDTMP•Na5 can be fully dissolved in water. It is innocuous and will not pollute the environment, has good chemical stability and thermal tolerance. EDTMP•Na5 has good scale inhibition property under the temperature of 200℃. EDTMP•Na5 can dissociate into 8 positive-negative ions, thus can chelate with more than two metal ions to form more than two polymer reticulation complex, the complex can be quickly dissolved in water to destroy the normal crystallization of calcium scale. EDTMP•Na5 shows better scale inhibition effects when acting on calcium sulfate and barium sulfate.

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.

The solid state EDTMP•Na5 is slightly deliquescent. It is convenient in transportation and suitable for using in winter and freezing districts.

Specification:
Items Index
Appearance Amber transparent liquid
Active content (EDTMP•Na5)% 30.0-32.5
Active content (EDTMPA)% 24.0-26.0
Chloride ( Cl -) % 2.0 max
Density (20 ℃ ) g/cm3 1.25 min
Fe, mg/L 20 max
PH (1% water solution) 6.0 ~ 8.0

Package and Storage:
Liquid: 200L plastic drum, IBC(1000L), or customers’ requirement. Storage for ten months in shady room and dry place.
Solid: 25kg/bag, or customers’ requirement. Storage for one year in shady room and dry place.

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