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


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

Molecular Formula: C9H21O15N3P5Na7

Molecular weight: 727

Structural Formula:


DTPMP•Na7 is a general-purpose scale inhibitor, powerful sequestrant, and excellent barium sulfate scale inhibitor.DTPMP•Na7 can be used as a stabilizer for peroxide bleaching, detergent auxiliaries, industrial & municipal cleaning water, terrestrial heat water, oilfield water, etc.


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-)% – 19.7-21.7
Chloride (as Cl) % 5.0 max 5.0 max
Fe, mg/L20.0 max20.0 max
PH(1% water solution) 7.0-9.0 7.0-9.0
Density (20℃) g/cm3 1.25 min 1.24-1.34

Package and Storage:

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

Safety Protection:

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



DTPMPA MSDS baoxu chemical

DTPMP tds baoxu chemical

Sample and Inquiry

Please contact our online sales or mail at [email protected] for a sample and general inquiries.