DTPMPA ( DIETHYLENETRIAMINE PENTA(METHYLENE PHOSPHONIC ACID)

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) five methene phosphoric acid are a kind of widely used corrosion inhibiting and descaling agents, outward appearance is brown color or red-brown thick liquid, nontoxic, molecular formula is C9H28O15N3P5, relative molecular weight is 573.2, be soluble in acidic solution, can form polynary ring huge legendary turtle compound with metal ion in the aqueous solution, loosely is scattered in water, destroy the calcium salt crystalline growths such as carbonate, sulfate scale, thereby play scale effect, can suppress the generation of carbonate, sulfate scale.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is an excellent threshold scale inhibitor for carbonate, sulfate and phosphate scales. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) inhibits scale formation at extremely low (ppm) dosage levels, sub-stoichiometric concentrations calculated on hardness of water. 

CAS:    15827-60-8
MF:    C9H28N3O15P5
MW:    573.2
EINECS:    239-931-4

Synonyms
dtpmp;DIETHYLENETRIAMINEPENTAKIS(METHYLPHOSPHONIC ACID);DIETHYLENE TRIAMINE PENTA(METHYLENE PHOSPHONIC ACID);DEQUEST(R) 2060;Diethylenetriamine,pentamethylenepentaphosphonicacid;diethylenetriaminepenta(methylenephosphonic);Phosphonic acid, P,P',P'',P'''-[ [(phosphonomethyl)imino]bis[2,1-e thanediylnitrilobis(methylene)]]tetrakis -;dequest 2060

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is an organophosphonate which shows excellent sequestration of metal ions at stoichiometric concentrations. 
These properties make DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) suitable for use in various applications like Peroxide bleaching, Textile auxiliaries, Industrial and Institutional cleaning, Detergent formulations etc.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) has excellent hydrolytic and thermal stability meaning it is stable over wide range of pH values and over higher temperatures, making it suitable for high temperature applications. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is also used as a scale inhibitor in oil and gas applications.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is a multidentate chelating agent. 
Hydrogen peroxide oxidation of DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is reported. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid), a phosphonate, is commonly used as crystallization inhibitors.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) or diethylenetriamine penta(methylene phosphonic acid) is a phosphonic acid. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) has chelating and anti-corrosion properties.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is an excellent threshold scale inhibitor for carbonate, sulfate and phosphate scales. 

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) inhibits scale formation at extremely low (ppm) dosage levels, sub-stoichiometric concentrations calculated on hardness of water. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is an organophosphonate which shows excellent sequestration of metal ions at stoichiometric concentrations. 
These properties make DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) suitable for use in various applications like Peroxide bleaching, Textile auxiliaries, Industrial and Institutional cleaning, Detergent formulations etc.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) has excellent hydrolytic and thermal stability meaning it is stable over wide range of pH values and over higher temperatures, making it suitable for high temperature applications. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is also used as a scale inhibitor in oil and gas applications.

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) non-toxic, soluble in acid solution, scale inhibition and good temperature resistance, corrosion effect all can inhibit the formation of carbonate, sulfate scale, under alkaline environment and high temperature (above 210 ℃) scale than other organic phosphonic good corrosion inhibition. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) in water treatment used for circulating cooling water and boiler water scale and corrosion inhibitor as to be not moved in the circulating cooling water is particularly suited to alkaline pH scale and corrosion inhibitor and can be used in the oil field water injection of high barium carbonate and cooling water, boiler water scale inhibitor; Separately use the product in the distribution of drugs, without adding dispersant, dirt deposition quantity is still small.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is innocuous and easy to be dissolved in an acid solution. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid)has excellent scale and corrosion inhibition and good thermal tolerance ability.

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid), commonly referred to as DTPMPA, is a phosphonic acid derivative characterized by its complex structure, which includes multiple methylenephosphonic acid groups attached to a diethylenetriamine backbone. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is typically a white to off-white solid and is soluble in water, making it useful in various aqueous applications. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) exhibits strong chelating properties, allowing it to effectively bind metal ions, which is beneficial in applications such as water treatment, where it helps to prevent scale formation and corrosion. 
Additionally, DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is utilized in the formulation of detergents and cleaning agents due to its ability to enhance the stability and efficacy of these products. 
The presence of multiple phosphonic acid groups contributes to its high stability and effectiveness in complexing with divalent and trivalent metal ions. 
Furthermore, DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is recognized for its low toxicity and environmental compatibility, making it a preferred choice in many industrial applications.

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) Chemical Properties
Boiling point: 1003.3±75.0 °C(Predicted)
Density: 1.35 (50% aq.)
Vapor pressure: 0Pa at 25℃
Storage temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
Solubility: Aqueous Base (Sparingly), Water
Form: Oil
pka: 0.59±0.10(Predicted)
Color: Pale Yellow to Brown
Water Solubility: 500g/L at 25℃
BRN: 2068968
InChIKey: DUYCTCQXNHFCSJ-UHFFFAOYSA-N
LogP: -3.4
CAS DataBase Reference: 15827-60-8(CAS DataBase Reference)
EPA Substance Registry System: DTPMPA ( diethylenetriamine penta(methylene phosphonic acid)(15827-60-8)

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is normally delivered as salts, because the acid form has very limited solubility in water and tends to crystallize in concentrated aqueous solutions. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is a nitrogenous organic polyphosphonic acid. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) shows very good inhibition of the precipitation of barium sulfate (BaSO4). 
At high alkali and high temperature (above 210 °C) environments DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) has better scale and corrosion inhibition effect than other phosphonates.

Uses    
The phosphonate DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is a wastewater pollutant, and a component of phosphorous-containing nanoparticles and materials, such as in the preparation of chitosan nanoparticles for plutonium pulmonary decorporation.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) solution is suitable for use in a study to investigate the dynamics and kinetics of sodium sulfate crystallization in the presence of various organophosphonic acids. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) may be employed as ligand for the characterization of Ce3+ complexes by luminescence spectroscopy.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is non-toxic and soluble in acidic solution. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) has good scale and corrosion inhibition effect and good temperature resistance. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) can inhibit the formation of carbonate and sulfate scale. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) has better scale and corrosion inhibition performance than other organic phosphines in alkaline environment and high temperature (above 210 ºC). 

DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is used as scale and corrosion inhibitor for circulating cooling water and boiler water in water treatment, especially for alkaline circulating cooling water as scale and corrosion inhibitor without adjusting pH, and can be used as scale and corrosion inhibitor for oilfield water injection, cooling water and boiler water with high barium carbonate content; The product is used alone in the compound agent without adding dispersant, and the dirt deposition is still very small.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) can also be used as peroxide stabilizer (especially good stabilization effect of hydrogen peroxide under high temperature), chelating agent for textile printing and dyeing, pigment dispersant, oxygen delignification stabilizer, trace element carrier in chemical fertilizer and concrete additive. 
In addition, DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) has also been widely used in papermaking, electroplating, metal pickling and cosmetics. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) can also be used as a stabilizer of oxidizing.
Excellent corrosion and Scale Inhibitor in circulating cooling water and boiler water, especially suitable for scale and corrosion inhibitor in closed circulation and alkaline circulation cooling water of ash flushing water system of power plant, DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) can be used for the scale and corrosion inhibitors of oil field water injection and cooling water, boiler water, and the stabilizer of peroxide and chlorine dioxide bactericide. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) is used alone in the compound agent, without adding a dispersant, and the amount of dirt is still very small.

Industrial uses    
Under alkaline environment and high temperature, anticorrosion-antiscaling property is good.
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) five methene phosphoric acid are used as the anti-incrustation corrosion inhibitor of recirculated cooling water and feedwater in water treatment, be specially adapted to the anti-incrustation corrosion inhibitor of alkaline recirculated cooling water, and can be used for containing the high oil-field flooding of barium carbonate and the anti-incrustation corrosion inhibitor of water coolant, use separately this product in compound drug, without adding dispersion agent, the dirt deposition amount is still very little; DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) also can be used as peroxide stabiliser, for textile printing and dyeing in the dispersion agent, oxygen delignification stablizer, chemical fertilizer of sequestrant, pigment trace element carry agent, concrete additive; In addition, at aspects such as papermaking, plating, metal pickling and makeup; Also can make the stablizer of oxidizing bactericide.

Synthesis    
The technical grade diethylenetriamine that total amount is 10% will be accounted for, the novel environment friendly formaldehyde that total amount is 58% that accounts for that content is 40% is sent in chemical reaction kettle, starting stirrer stirs, rotating speed is 20 rev/mins, even blend, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 50 ℃-55 ℃, add slowly and account for the technical grade phosphorous acid crystal that total amount is 30%, be stirred to the follow-up temperature of continuing rising of whole dissolvings, add slowly and account for the catalyzer composite type metallic oxide that total amount is 2%, after stirring, be warming up between 95 ℃-98 ℃, stirring reaction 1.6-1.8 hour, stop, to the reactor steam supply, being cooled to normal temperature, continue to stir, add the aqueous sodium hydroxide solution that appropriate content is 20%, adjust pH is to stop stirring after between 10-10.5 obtaining finished product, during use, can be using diethylenetriamine five methene phosphoric acid as anti-incrustation corrosion inhibitor or clean-out system use and get final product.

Preparation Method
The orange liquid can be obtained by the reaction of anhydrous diethylenetriamine, formaldehyde and phosphorus trichloride. 
DTPMPA ( diethylenetriamine penta(methylene phosphonic acid) can be used as a scale inhibitor for circulating cooling water. 
If the solid product is prepared, the liquid can be slowly dropped into anhydrous ethanol, that is, a white precipitate is precipitated, and the ethanol is filtered off, and the solid product is obtained.