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Dequest 2066A is widely used in several industrial sectors.
In water treatment applications, Dequest 2066A is used for cooling water treatment, boiler water treatment, industrial water systems, and geothermal water treatment processes.
In the detergents and cleaning industry, Dequest 2066A is used in laundry detergents, industrial cleaners, institutional cleaning formulations, and in systems that require peroxide bleach stabilization.
CAS Number: 15827-60-8 (acid form – DTPMP)
22042-96-2 (sodium salt form)
EC Number: 239-931-4
244-751-4
Chemical Name: Diethylenetriamine penta (methylene phosphonic acid) sodium salt solution
Chemical Family: Organophosphonate
Molecular Formula: C9H28N3O15P5 (acid form)
Molecular Weight: 573.20 g/mol
SYNONYMS:
Dequest 2066A, DTPMP, Diethylenetriamine penta(methylene phosphonic acid), Diethylenetriamine pentakis(methylene phosphonic acid), Diethylenetriamine pentamethylene phosphonic acid, DTPMPA, Briquest 543-33S, Wayplex 55S, Sequion 40Na32, Dietilentriaminpenta(metilenfosfonik asit), [[(Phosphonomethyl)imino]bis(2,1-ethanediylnitrilobis(methylene))]tetrakisphosphonic acid, DETPMP, Diethylenetriamine penta (Methylene phosphonic acid)
Dequest 2066A is a scale inhibitor, for barium sulphate in particular and a chelating agent.
Dequest 2066A is an organic polyphosphonic acid derivative that contains multiple phosphonate functional groups in its molecular structure.
Because of this structure, Dequest 2066A has a strong ability to bind metal ions, making it an effective chelating or sequestering agent.
Dequest 2066A has a multi-dentate chelating structure that allows it to form stable complexes with various metal ions.
Dequest 2066A demonstrates strong metal-ion complexing ability and high resistance to hydrolysis, which contributes to its stability in demanding industrial environments.
Dequest 2066A also shows stability in oxidizing environments and provides excellent inhibition of mineral scale formation.
Dequest 2066A is particularly effective in preventing the deposition of barium sulfate and calcium scales.
In addition, Dequest 2066A maintains stability in alkaline and high-temperature systems.
Dequest 2066A performs especially well under high-temperature conditions, even above 200 °C, and in strongly alkaline environments where many other phosphonate compounds may lose efficiency.
Dequest 2066A is an industrial phosphonate-based chelating agent widely used in water treatment, detergents, scale inhibition, and corrosion control systems.
Dequest 2066A is typically supplied as a partially neutralized sodium salt solution of diethylenetriamine penta(methylene phosphonic acid) (DTPMP).
DEQUEST 2066A is known for its excellent scale inhibition, strong metal ion chelation, and stability under harsh conditions such as high temperature, high alkalinity, and the presence of oxidizing agents like chlorine.
Because of these properties, Dequest 2066A is commonly used in industrial water systems, oilfield operations, detergents, and textile processing.
Dequest 2066A is particularly effective under high temperature conditions (above 200 °C) and in strongly alkaline environments, where many other phosphonates lose efficiency.
Dequest 2066A is the neutral pH Sodium salt version of Dequest 2066, a general purpose scale inhibitor, powerful sequestrant and excellent barium sulphate scale inhibitor.
USES and APPLICATIONS of DEQUEST 2066A:
Dequest 2066A exhibits several important industrial properties.
Dequest 2066A has strong chelating ability and acts as an excellent scale inhibitor in water treatment systems.
Dequest 2066A also provides corrosion inhibition properties and demonstrates a threshold scale inhibition effect, meaning it can prevent scale formation even at relatively low concentrations.
Dequest 2066A has high thermal stability and maintains its effectiveness in alkaline conditions.
Dequest 2066A is compatible with oxidizing biocides such as chlorine and provides effective control of calcium and barium scale formation.
Another important property is its high efficiency at low dosage levels, which makes Dequest 2066A economically advantageous in many industrial applications.
Additionally, Dequest 2066A is capable of stabilizing peroxide systems.
Dequest 2066A is widely used in several industrial sectors.
In water treatment applications, Dequest 2066A is used for cooling water treatment, boiler water treatment, industrial water systems, and geothermal water treatment processes.
In the detergents and cleaning industry, Dequest 2066A is used in laundry detergents, industrial cleaners, institutional cleaning formulations, and in systems that require peroxide bleach stabilization.
In the oil and gas industry, Dequest 2066A is applied for oilfield scale control, injection water treatment, and corrosion inhibition in pipelines.
In the textile industry, Dequest 2066A functions as a chelating agent during textile processing and is used to stabilize bleaching systems.
Other applications of Dequest 2066A include metal ion sequestration, industrial descaling formulations, and use in various chemical processing systems.
Dequest 2066A is a widely used phosphonate-based scale inhibitor that is effective against carbonate and sulfate scales and has corrosion inhibition properties, and excellent thermal stability.
Dequest 2066A can be used as stabilizer for peroxide bleaching, detergent auxiliaries, in industrial & municipal cleaning water, terrestrial heat water, oilfield water, etc.
Dequest 2066A is mainly used as Chelating (Sequestrating) agent, Peroxide Bleach Stabilization.
Applications of Dequest 2066A: Based on based on Sodium salt of diethylene triamine penta (methylene phosphonic acid), recommended applications for Dequest 2066Ainclude: cooling water treatment, peroxide bleach stabilization and scale control in detergent formulations, Industrial & Institutional cleaners, geothermal water treatment, oil field scale control.
Uses of Dequest 2066A: Water Treatment, Cooling water treatment, Boiler water treatment, Industrial water systems, Geothermal water treatment, Detergents and Cleaning Agents.
Dequest 2066A is used Laundry detergents, Industrial cleaners, Institutional cleaning formulations, Peroxide bleach stabilization, Oil and Gas
Industry, Oilfield scale control, Injection water treatment, Corrosion inhibition in pipelines, Textile Industry, Chelating agent in textile processing, Stabilization of bleaching systems.
Other Applications of Dequest 2066A: Metal ion sequestration, Industrial descaling formulations, Chemical processing system.
BENEFITS of DEQUEST 2066A:
The use of Dequest 2066A provides several practical benefits in industrial processes.
Dequest 2066A helps prevent scale formation in water systems, which improves operational efficiency and reduces maintenance requirements.
Dequest 2066A enhances the performance of detergents and cleaning agents by effectively sequestering metal ions.
Dequest 2066A also improves corrosion protection in industrial equipment and stabilizes hydrogen peroxide bleaching systems.
Dequest 2066A maintains its effectiveness over a wide pH range and contributes to reduced maintenance costs in industrial water treatment operations.
Furthermore, Dequest 2066A improves the performance of cooling systems and boilers and provides effective metal ion sequestration in various formulations.
MAIN PROPERTIES of DEQUEST 2066A:
Dequest 2066A exhibits several important industrial properties:
*Strong chelating ability
*Excellent scale inhibitor
*Corrosion inhibition properties
*Threshold scale inhibition effect
*High thermal stability
*High alkaline stability
*Compatibility with oxidizing biocides such as chlorine
*Good calcium and barium scale control
*High efficiency at low dosage levels
*Stabilization of peroxide systems
BENEFITS of DEQUEST 2066A:
Advantages of using Dequest 2066A include:
*Dequest 2066A prevents scale formation in water systems
*Dequest 2066A improves efficiency of detergents and cleaning agents
*Dequest 2066A enhances corrosion protection in industrial equipment
*Dequest 2066A stabilizes hydrogen peroxide bleaching systems
*Dequest 2066A maintains effectiveness over wide pH ranges
*Dequest 2066A reduces maintenance costs in industrial water systems
*Dequest 2066A improves performance of cooling systems and boilers
*Effective metal ion sequestration in formulations
KEY CHEMICAL CHARACTERISTICS of DEQUEST 2066A:
*Multi-dentate chelating structure
*Strong metal-ion complexing ability
*High resistance to hydrolysis
*Stability in oxidizing environments
*Excellent inhibition of mineral scale formation
*Effective prevention of barium sulfate and calcium scale deposition
*Stability in alkaline and high-temperature systems
CHEMICAL CHARACTERISTICS of DEQUEST 2066A:
Dequest 2066A is an organic polyphosphonic acid derivative containing multiple phosphonate groups.
The molecule has a strong ability to bind metal ions, making Dequest 2066A a powerful chelating or sequestering agent.
PHYSICAL and CHEMICAL PROPERTIES of DEQUEST 2066A:
Product Name: DEQUEST 2066A
Chemical Name: Diethylenetriamine penta (methylene phosphonic acid) sodium salt solution
Chemical Family: Organophosphonate
CAS Number: 15827-60-8 (acid form – DTPMP)
CAS Number: 22042-96-2 (sodium salt form)
EC Number: 239-931-4
EC Number: 244-751-4
Molecular Formula: C9H28N3O15P5 (acid form)
Molecular Weight: 573.20 g/mol
Substance Type: Organophosphonic acid derivative / chelating agent
Appearance: Clear amber to dark amber liquid
Color: Amber to pale yellow
Odor: Odorless or slight odor
Physical state: Liquid solution
Density: ~1.35 – 1.43 g/cm³
pH (1% solution): 2 – 3
Molecular Weight: 573.20 g/mol
Boiling Point: approx. 1000 °C (decomposition)
Vapor Pressure: ~0 Pa
Water Solubility: Completely miscible with water
Partition Coefficient (logP): approx. 1.95 – 3.5
Category: Flow Assurance, Hydraulic Fracturing
Key Application: Production, Stimulation
Product Function: Scale inhibitors
Form: liquid
Colour: amber
Odour: odourless
pH: 2 - 3 @ 10 g/l @ 25 °C
Flash Point: -
Specific Gravity: 1.41 - 1.43
Water Solubility: completely miscible
Non flammable aqueous solution
Partition Coefficient noctanol/water (log Pow): 3.5 @ 20 °C
Freezing Point: -20 °C
Product Name: DTPMPS (Na-2)
Chemical Name: Disodium Salt of Diethylene Triamine Penta(methylene phosphonic acid)
CAS No.: 22042-96-2
Molecular Weight: 617
Common Name: Dequest 2066A
SPECIFICATIONS:
Appearance: Clear, Dark amber solution
Active Acid: 45.0% min.
Phosphorous acid (as PO33-): 5.0% max.
pH (1% water solution): 2.0-3.0
Density (20 °C) g/cm³: 1.37-1.43
Iron (as Fe): 20 ppm max.
Ca Sequestration: 450 min.
FIRST AID MEASURES of DEQUEST 2066A:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available
ACCIDENTAL RELEASE MEASURES of DEQUEST 2066A:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.
FIRE FIGHTING MEASURES of DEQUEST 2066A:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.
EXPOSURE CONTROLS/PERSONAL PROTECTION of DEQUEST 2066A:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.
HANDLING and STORAGE of DEQUEST 2066A:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.
STABILITY and REACTIVITY of DEQUEST 2066A:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available
