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Molecular Formula:   C9H21O15N3P5Na7

CAS No.  68155-78-2 (7-Na)

Alias: DTPMP•Na7

Molecular weight: 727

Structural Formula:

HEPTA Sodium Salt of Diethylene Triamine Penta Methylene Phosphonic Acid DTPMP • Na7

Properties & Use

DTPMP•Na7 is a scale inhibitor, for barium sulphate in particular and a chelating agent.DTPMP•Na7can be used as stabilizer for peroxide bleaching, detergent auxiliaries, in industrial & municipal cleaning water, terrestrial heat water, oilfield water, etc.

Specification:

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-) %	5.0max	5.0max
Fe,mg/L	20max	20max
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

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