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DTPMP Na7, DTPMP Hepta Sodium Salt


DTPMP Na7 is the hepta-sodium salt of DTPMP. DTPMP Na7 is a scale inhibitor, for barium sulfate in particular and a chelating agent. DTPMP hepta-sodium can be used as a stabilizer for peroxide bleaching, detergent auxiliaries, in industrial & municipal cleaning water, terrestrial heat water, oilfield water, etc.

CAS No.: 68155-78-2

Molecular Formula: C9H21O15N3P5Na7

Molecular Weight: 727

Structural Formula:



AppearanceUmber transparent liquid
Active content (DTPMPA), %31.5-33.524.0-26.0
Active content (DTPMPA Na7), %40.0-42.530.5-33.0
Total phosphoric acid (PO43-), %25.9-27.919.7-21.7
Chloride (as Cl-), %5.0 Max.5.0 Max.
pH (1% water solution)7.0-9.07.0-9.0
pH (as it)6.0-8.06.0-8.0
Density (20℃), g/cm31.34-1.441.24-1.34
Fe, mg/L20 Max.20 Max.

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 eye and skin. Once contacted, flush with water.