Phosphonic Polymaleic Acid (Ppma)

We are engaged in manufacturing, exporting and supplying excellent quality Phosphonic Polymaleic Acid (PPMA) to our valuable clients.
Other Names: Phosphono Containing Polymaleic Acid (Anhydride)

Properties:
PPMA is formed by the P-C bonding,hard to be hydrolyzed, a low-phosphorus scale inhibitor and cathode corrosion inhibitor. Due to including phosphate group (corrosion inhibition and chelation) and carboxylic acid group (dispersion), PPMA has double synergic effects and better performance than HPMA and MA/AA. It has good corrosion inhibition on brass, good dispersion on different scale salt such as CaCO3a Ca3(PO4)2a MgSiO3. PPMA has good compatibility with zinc salt. When used together, the zinc ion is more stable, the solubility of zinc salt can be improved to stay dissolved state even at pH9.5, and the corrosion degree of carbon steel can be decreased to below 0.1mm/a. When built with benzotriazole, it can inhibit copper, aluminum and alloy corrosion.

Specification:
Appearance : Colorless to yellow liquid
Solid content, % : 48.0 min
Organophosphorus (as PO43), % : 13.0 min
pH (1% water solution) : 2.0-3.0
Density (20A C), g/cm3 : 1.23-1.40

Usage:
When used alone in the circulating cool water during normal operation, the dosage of be 20-30 mg/L is preferred. When used together with organic phosphorus, the dosage of 1-10 mg/L is preferred. The product can also be used together with other scale inhibitor.