2-Carboxyl ethyl (phenyl) phosphinic Acid (CEPPA)

2-Carboxyethyl(phenyl)phosphinic Acid (CEPPA)

2-Carboxyethyl(phenyl)phosphinic Acid (CEPPA)2-Carboxyethyl(phenyl)phosphinic acid (CEPPA) is a specialized organophosphorus compound that combines both phosphinic acid and carboxylic acid functional groups in a single molecular structure.

This bifunctional chelating agent features a phenyl ring attached to a phosphinic acid group, with a propionic acid side chain, making it a versatile compound for various industrial and research applications.

Chemical Properties

CEPPA is characterized by its unique dual-functionality, possessing both a P-C bond (phosphinic acid moiety) and a carboxylic acid group.

This structural arrangement provides exceptional metal-binding capabilities and chemical stability compared to traditional organophosphorus compounds.

The presence of the phenyl group enhances its hydrophobic character while the acid groups contribute to water solubility under appropriate pH conditions.

Key Applications

  • Metal Extraction and Separation: CEPPA demonstrates excellent chelating properties for rare earth elements and transition metals, making it valuable in hydrometallurgical processes and metal recovery operations.
  • Scale and Corrosion Inhibition: The compound’s ability to form stable complexes with metal ions makes it effective as a scale inhibitor in industrial water treatment systems and cooling towers.
  • Surface Treatment: CEPPA can be utilized in metal surface modification and coating applications, where its bifunctional nature allows for strong adhesion to metal substrates.
  • Research and Development: The compound serves as a valuable building block in synthetic chemistry and as a ligand in coordination chemistry studies.

Advantages

  • Strong and selective metal-binding capacity
  • Enhanced chemical and thermal stability
  • Dual functionality offering versatility in applications
  • Effective across a range of pH conditions
  • Lower environmental persistence compared to some traditional phosphonates

CEPPA represents an advanced solution for applications requiring robust metal complexation and surface interaction properties.

 2-hydroxy phenyl phosphinyl propanoic acid

Product 2-hydroxy phenyl phosphinyl propanoic acid
Formula C9H11O4P
CAS# 14657-64-8
Packing 25kg bags or  jumbo sacks