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Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents
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Shandong Taihe Chemicals Co., Ltd.
TEL:  +86-632-5113066
FAX:  +86-632-5112055
E-mail: info@thwater.net
Web: http://www.taihechem.net
ADD: No.1, Shiliquan East Road, Shizhong District, Zaozhuang City, Shandong Province, P.R.China

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 (DTPMP•Na7)%  40.0-42.5  30.5-33.0
Total phosphoric acid(PO43-)%  25.9-27.9  19.7-21.7
Chloride ( as Cl-) %  5.0 max  5.0 max
Fe, mg/L 10.0 max 10.0 max
 PH(1% water solution)  7.0-9.0  7.0-9.0
 Density (20℃) g/cm3  1.34-1.44  1.24-1.34

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.