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EDTMPA Ethylenediamine tetramethylidene phosphonic acid

2020-08-18 09:32:44
EDTMPA Ethylenediamine tetramethylidene phosphonic acid

Performance and Use:

EDTMPA is a nitrogen-containing organic polyphosphonate and belongs to cathodic corrosion inhibitor. Compared with inorganic polyphosphate, the corrosion inhibition rate is 3-5 times higher.It is miscible with water, non-toxic and non-polluting, has good chemical stability and temperature resistance, and still has good scale inhibition effect at 200 C.EDTMPA can dissociate into 8 positive and negative ions in aqueous solution, so it can chelate with multiple metal ions to form multiple monomer-structured macromolecular network complexes, which are loosely dispersed in water and destroy the normal crystallization of calcium scale.EDTMPS has good scale inhibition effect on calcium sulfate and barium sulfate scale.

EDTMPA is used as corrosion inhibitor and scale inhibitor for circulating water and boiler water, complexing agent for cyanide-free electroplating, chelating agent for textile printing and dyeing industry and oxygen bleaching stabilizer.

Quality indicators:


Usage method:

When administered separately in circulating cooling water, the general dose is 2-10 mg/L.After EDTMPA and HPMA are compounded in a ratio of 1:3, they can be used for water treatment in low pressure boiler furnace.EDTMPS can also be used in combination with BTA, PAAS, zinc salts, etc.

Packaging and storage:

EDTMPA is packaged in plastic drums of 25 kg per drum or as determined by user needs.Store in a cool indoor place for six months.

Safety and protection:

EDTMPA is weak alkaline. Pay attention to labor protection during operation. Avoid contact with eyes and skin. Once contacted, rinse it with plenty of water immediately.