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

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CAS No.: 22042-96-2 (x-Na) 68155-78-2 (7-Na)
Molecular Formula: C9H21O15N3P5Na7
Molecular weight: 727
Structural Formula:

Other name: Anti-scale Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid); heptasodium trihydrogen [[bis[2-[bis(phosphonatomethyl)amino]ethyl]amino]methyl]phosphonate 

1.Performance and usage
DTPMP Na7 can be used as a anti-scale agent, chelating agent. It has a great ability on preventing BaSO4 scale forming. It is widely used in cooling tower water treatment, stabilizer of peroxide, , detergent auxiliaries, underground heat water treatment, anti-scale in oil field

2.Technical indicators

Item	Standard
Appearance	Reddish brown liquid
Effective content(DTPMPA) %	31.5-33.5	24.0-26.0
Effective content(DTPMP•Na7) %	40.0-42.5	30.5-33.0
Chloride(Cl-) % ≤	5.0	5.0
Fe(based Fe2 )mg/L  ≤	20.0	20.0
pH（1% liquid）	7.0-9.0	7.0-9.0
Density（20℃）g/cm3 ≥	1.25	1.24-1.34

3.Package and Storage:
30 kg or 250kg plastic barrel; can also be determined according to clients’ demand. 
Store in a cool and ventilated place indoors, storage period is 1 year.

4. Safety protection
DTPMP-Na7 is a neutral substance. Pay attention to labor protection during operation. Avoid contact with skin, eyes, etc. After contact, rinse with plenty of water.