Water Treatment Chemicals, Phosphonates, Polymers, Biocides

Organophosphoric Antiscale and Corrosion Inhibitors, Chelant

Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMP•Na7)

CAS No.: 22042-96-2 (x-Na) 68155-78-2 (7-Na)

Molecular Formula: C9H21O15N3P5Na7

Molecular weight: 727

Structural Formula:



DTPMP•Na7 is a scale inhibitor, for barium sulphate in particular and a chelating agent. DTPMP•Na7 can be used as stabilizer for peroxide bleaching, detergent auxiliaries, in industrial & municipal cleaning water, terrestrial heat water, oilfield water, etc.


items index
 Appearance  Umber transparent liquid
 Active content (DTPMPA)% >  31.5-33.5  24.0-26.0
 Active content (DTPMPANa7)%  40.0-42.5  30.5-33.0
 Total phosphoric acid(PO43-)%  25.9-27.9  19.7-21.7
 Chloride (as Cl-) %  5.0max  5.0max
 PH(1% water solution)  7.0-9.0  7.0-9.0
 PH(as it)  6.0-8.0  6.0-8.0
 Density (20℃) g/cm3  1.34-1.44  1.24-1.34
Fe,mg/L  20max  20max

Package and Storage:

200L plastic drum,IBC(1000L),customers’ requirement. Storage for ten months in shady room and dry place.

Safety Protection:

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



Shandong IRO Water Treatment Co., Ltd.

Office Address: 2802, 1st Building, No.19 Zhangzhou 2nd Rd, Qingdao, China
Factory Address: Qicun Town, Shizhong, Zaozhuang, Shandong, China
Tel: +86-532-85027466 Fax: +86 532 85028486
Email: info@irowater.com

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