Properties：
EDTMPS is a nitrogen-containing organic polyphosphonate and belongs to cathodic corrosion inhibitors. Compared with inorganic polyphosphates, its corrosion inhibition rate is 3-5 times higher. It is miscible with water, non-toxic and non-polluting, and has excellent chemical stability and temperature resistance. Even at 200℃, it still maintains a good scale inhibition effect.
In aqueous solution, it can dissociate into 8 positive and negative ions, so it can chelate with multiple metal ions to form macromolecular reticular complexes with multiple monomer structures. These complexes are loosely dispersed in water, thereby disrupting the normal crystallization of calcium scale. Additionally, this product exhibits good scale inhibition effects on calcium sulfate scale and barium sulfate scale.
Applications：
EDTMPS is used as a corrosion and scale inhibitor in circulating water and boiler water, a complexing agent in cyanide-free electroplating, and a chelating agent and oxygen bleaching stabilizer in the textile printing and dyeing industry.
| Specifications | ||
|---|---|---|
| Packing: | 25kg/drum, in plastic or iron drums with inner bag,or as customer's requirements. | |
| Appearance | Light yellow to yellow transparent liquid | |
| Active component(as EDTMPS) % | ≥30.0 | |
| Organophosphine(as PO43-) % | ≥10.0 | |
| Phosphorous acid(PO33-) % | ≤3.0 | |
| Phosphoric acid(PO43-) % | ≤1.0 | |
| Density(20℃) g/cm3 | ≥1.25 | |
| Cl- % | ≤2.0 | |
| pH(1%sol.) | 9.5-10.5 | |
Transportation conditions: It is strictly prohibited to mix and transport with oxidants, acids, edible chemicals, etc. During transportation, exposure to sunlight, rain, and high temperatures should be prevented. The vehicle should be cleaned after transportation. For road transportation, it shall follow the specified route. Air transportation: EDTMPS can be handled under ordinary cargo conditions.
Storage conditions: It should be stored in a cool and dry place. Attention should be paid to protecting it from sunlight, moisture and package damage. It is recommended to stack it on shelves or single-layer pallets.
Shelf life: Under the above storage and transportation conditions, the shelf life is 6 months.
