Diethylene Triamine Penta (Methylene Phosphonic Acid) DTPMPA
【CAS】 15827-60-80
Alias: Diethylene Triamine Penta (Methylene Phosphonic Acid) Dequet: 2060
Molecular formula: C9H28O15N3P5 Relative molecular mass: 573.2
Structural formula:
I. Product Property
DTPMPA is innocuous, easy to be dissolved in acid solution. DTPMPA has excellent scale and corrosion inhibition and good thermal tolerance ability. DTPMPA can inhibit the scale formation of carbonate, sulfate and phosphate. On situation of alkali environment and high temperature (above 210℃) DTPMPA has better scale and corrosion inhibition effect than other organophosphines.
II. Quality Index:
| items |
index |
| Appearance |
Brown transparent liquid |
| Active acid % |
48.0-52.0 |
| Phosphorous acid (as PO33-)% |
5.0max |
| Chloride (as Cl-)% |
14-17 |
| Density (20℃) g/cm3 |
1.35-1.45 |
| pH (1% solution) |
2.0max |
| Fe，mg/L |
35 max |
III. Application Scope and Usage
DTPMPA can be used as scale and corrosion inhibitor in circulating cool water system and boiler water, and especially in alkali circulating cool water system without additional pH regulation, It can also be used in oilfield refill water, cool water and boiler water with high concentration of barium carbonate. When used alone, little scale sediment is found even none of dispersant is used.
DTPMPA can also be used as peroxide stabilizer, chelating agent in woven & dyeing industry, pigment dispersant, microelement’s carrying agent in fertilizer and concrete modifier. In addition, DTPMPA is used in papermaking, electroplating, acid cleaning and cosmetics.
V. Package and Storage
It is packed in 30kg plastic drum, or as determined by users. It can be stored for ten months in shady and dry place under room condition.
V. Safety Protection
This product is in acidity. Avoid contact with eye and skin. Rinse with plenty of water shortly after being bodily stained.
