DTPMP (Diethylenetriamine pentamethylene phosphonic acid)

This surfactant is proposed as a chelating agent and sediment inhibitor. Also, the formed sediments are broken with the help of DTPMP and separated from the system.

This phosphonate is also known as methylene phosphonic acid.

Physical and chemical properties:

Methylene phosphonic acid is generally in the form of salt; Because its acidic state has little solubility in water.

DTPMP acid and its salts are available in complete neutral and semi-neutral.

Hydrogen peroxide has been investigated as a catalytic oxidizing agent on various phosphonates. Among the various phosphonates, DTPMP shows a positive response to oxidation and is more resistant.

The seven-sodium salt of this substance, DTPMP.NA7, has anti-fouling properties, especially in barium sulfate medium, and can be used as a stabilizer for peroxides of bleaches, detergents, water used in industry and municipality, etc.

In high-temperature environments (above 210) DTPMP has better anti-corrosion and anti-fouling properties than other phosphates (ATMP, HEDP).

Chemical formula	C9H28N3O15P5
Molar mass	573.20 g/mol
Appearance	Yellowish-brown or reddish-brown transparent liquid
Density	1.35-1.45 g/cm3
PH (1%)	≤2
Chemical Structure Depiction

The structure:

These phosphonates are structurally similar to amino polycarboxylates such as EDTA. The stability of metal complexes increases with the increasing number of phosphonic acid groups. This compound contains nitrogen and phosphorus atoms in the molecule, which can form a stable complex with alkali and intermediate metals.

 Applications and uses of DTPMP:

• Detergents and Cleaners;
• water treatment;
• Anti-fouling;
• Anti-corrosion;
• Chelating agent;
• Flocculation;
• Sediment inhibitor;
• Scaling inhibitor;
• Agriculture industry;
• DTPMP is used in chemical, leather processing, paper pulpboard, paints lacquers varnishes, and textile processing.

Effective agent in detergents and cleaners:

Phosphonates are essential compounds used in detergent formulations. They have a wide range of functional groups required for household and industrial detergents. Among other raw materials, phosphonates are used to stabilize water hardness, remove stains, stabilize disinfectants or bleach compounds.

Application of DTPMP in water treatment:

Phosphonates are used in the production of drinking water as an anti-fouling agent to prevent the deposition of salts in reverse osmosis filters.

Prevention of corrosion of metals by DTPMP:

Inhibitors are used to protect metals from corrosion. Generally, for industrial applications, a large number of inhibitors such as organic compounds, amines, heterocyclic and phosphonic acid compounds, etc. are used. Polyphosphates are good inhibitors in the absence of natural toxins. Very low concentrations of these inhibitors are used to protect water storage systems, especially in cold water treatment. Phosphonates are also a good complexing agent.

Safety information:

An irritant that may cause serious eye injury

Burning and itching of the skin

This compound is highly irritating to the respiratory tract

As a corrosive metal

First-aid measures:

• Skin Contact: Immediately flush skin with water.
• Inhalation: move the person to the fresh air.
• Eye Contact: Rinse eyes with water for at least 15-20 minutes.
• Ingestion: Do not induce vomiting. Get medical aid immediately. Call a poison control center.

Packing and storage:

Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in a tightly closed original container.