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EDTMPA.5Na

Product Details

Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium Salt

EDTMPA.5Na

CAS Number: 7651-99-2

Molecular Formula: C6H15N2O12P4Na5

Molecular Weight: 546

Application Notes:

EDTMPA.5Na is a neutral solid product. It is nitrogenous organic  polyphosphonic acid, which is a part of cathodic corrosion inhibitor. EDTMPA.5Na  can be fully dissolved in water, innocuous and none pollution to environment,  has good chemical stability and thermal tolerance. EDTMPA.5Na has good scale  inhibition property under temperature 200°C. EDTMPA.5Na 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. EDTMPA.5Na  shows better scale inhibition effects to calcium sulfate and barium sulfate.

Recommended Uses:

EDTMPA.5Na 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 EDTMPA.5Na is slightly easy to deliquescence, convenient in  transportation and suitable for usage in winter and freezing districts.

Product Specification:

Items

Index

Appearance

Pale  yellow liquid

Active  Acid (%) 

24.0  - 26.0

Active  Salt (%) 

30.0  - 32.6

pH  (neat solution) @ 25°C

6.0  - 8.0

Iron,  as Fe (ppm)

20.0  max

Specific  Gravity @20/20°C

1.300min

Chloride  (as Cl-,  %)

5.0  max

Package and Storage:

Normally in 200L HDPE drum and 1000L IBC.

Storage for 12 months in room shady and dry place.

Safety Protection:

Avoid contact with eye and skin, once contacted, flush with plenty  water.


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