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Current Position: (DTPMP•Na5) Diethylene Triamine Penta (Methylene Phosphonic Acid) Pentasodium Salt

Diethylene Triamine Penta (Methylene Phosphonic Acid) Pentasodium 
Salt (DTPMP•Na5)


CAS No. 68155-78-2

Molecular Formula: C9H23O15N3P5Na5 Molecular weight:683.2

Structural Formula:


DTPMP•Na5 is a neutral product. DTPMP•Na5 is notoxic, easily dissolved in water. It paly as a scale and corrosion inhibitor in circulating cool water system and boiler water system.DTPMP•Na5 Also can be used as peroxide stabilizer, chelator in textile and dying field, dispersant for paint, microelement carrier in fertilizer, beton additives. Also it be widely used in paper making, electroplate and cosmetic field.The solid state DTPMP•Na5 is slightly easy to deliquescence, convenient in transportation and suitable for usage in winter and freezing districts.


Items Index
 Appearance  Umber transparent liquid
 Active content (DTPMPA)% >  24.0-26.0
 Active content(as DTPMP•Na5)%  28.5-31.0
Total phosphoric acid(PO43-)%  19.7-21.7
Chloride ( as Cl-) %  5.0 max
Fe, mg/L 20 max
 PH(1% water solution)  6.0-8.0
 Density (20℃) g/cm3  1.25 min

Package and Storage:

For liquid: Normally In 25kg or 250kg net Plastic Drum, or packing according to customers' required. For solid: inner liner polyethylene (PE) bag, outer 50L plastic drum, net 20kg. Storage for ten months in room shady and dry place.

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