Identification Synonyms Poly (1-oxacyclopropane-2,3-dicarboxylic acid); PESA Molecular Formula (C4H4O5) x CAS Number 51274-37-4 Structure Properties Appearance colorless to amble transparent liquid Solubility miscible in water Stability stable under ordinary conditions Specification Item Specification Appearance colorless to amble transparent liquid Solid content 40.0% min pH (1% water solution) 9.0-12.0 Density (20�??�?�ºC) 1.280 g/cm3 min Application PESA is a scale and corrosion inhibitor without phosphor and nitrogen. It has good scale inhibition and dispersion for calcium carbonate, calcium sulfate, calcium fluoride and silica scale. When combined with organophosphates, the synergism effects are obvious. PESA has good biodegradability. It can be widely used in circulating cool water system in case of high alkaline, high hardness and high pH value. Packing and Storage Packing: In 250kgs net plastic drum. Storage: Keep tightly closed. Safety Information Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.