CAS No.: 15827-60-8 EINECS: 239-931-4
Molecular Formula: C9H28O15N3P5 Molecular Weight: 573.2
RIDADR: UN 3265 8/PG III
Diethylenetriaminepenta -Methylenephosphonic Acid is non-toxic, easily soluble in acid solution. Diethylenetriaminepenta -Methylenephosphonic Acid has excellent scale and corrosion inhibition and good temperature tolerance ability. Diethylenetriaminepenta -Methylenephosphonic Acid can inhibit the scale formation of carbonate and sulfate. In alkaline environment and high temperature (above 210℃), its scale inhibition performance is better than other organic phosphine.
Brown transparent liquid
Active acid %
Chloride (as Cl-)%
Density (20℃) g/cm3
pH (1% water solution)
Diethylenetriaminepenta -Methylenephosphonic Acid can be used as scale and corrosion inhibitor in circulating cool water system and boiler water, especially in alkali circulating cool water 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 without using dispersant.
Diethylenetriaminepenta -Methylenephosphonic Acid can also be used as peroxide stabilizer (especially under the condition of high temperature, the stability of hydrogen peroxide is very good), as chelating agent in woven & dyeing industry, as pigment dispersant, as oxygen delignification stabilizer, as microelement’s carrying agent in fertilizer, and as concrete additive.
In addition, Diethylenetriaminepenta -Methylenephosphonic Acid is also used in papermaking, electroplating, metal pickling and cosmetics. It can also be used as stabilizer for oxidizing bactericide.
Package and Storage:
Normally in 200L HDPE drum, 1000L IBC, or customers’ requirement.
Storage for ten months in shady room and dry place.
Avoid contact with eye and skin, once contacted, flush with water.