SM-3210F Diethylenetriaminepentakis(methylphosphonic acid)

Chemical structure:



◎excellentscale inhibition for calcium carbonate,calcium sulfateand barium sulfate.Inhibiting efficiency is 2~3 times as high as ATMP.Also the corrosion-inhibition   effect issuperior toHEDP and ATMP.

◎well scale inhibition in high alkalinity and high hardness water.

◎strong chelation forcalcium ion,iron ion,cupric ion,zinc ionand aluminium ion.

◎better threshold value.

◎well thermostable performance and antioxygenic property.

◎efficientcorrosion inhibition for carbon steel equipment 

◎low-phosphorous and environmental.



reddish brown transparent liquid

Active matter content


Phosphorous acid(PO33-)content


PH(1% aqueous solution)




 Calcium chelate value(CaCO3)mg/g



This product is used as a scale-corrosion inhibitorin high alkalinity,high hardness and high PH(10~11)water.Also we use this product in oilfield flooding and cooling water system thatcontainhighbarium sulfate. It is a scale-corrosion inhibitorforboiler waterand astabilizerfor peroxides.It is especially suitable for closed circulation system of ash-sluicing water in power plants.


When this product is added alone or compounded with other agents,the general dosage is 2~10㎎/L.

Packaging and storage:

◎25㎏or 250㎏packed in a plastic drum.

◎Stored in a cool and dry place.

◎Usable life:1 year.


Changzhou SanmingJingHui Environmental Protection Technology Co., Ltd.

Contact:Ms Zhang
Address:HengshanQiao Town, Changzhou, Jiangsu, China