Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents
Salts of Phosphonates
Polycarboxylic antiscalant and dispersant
Biodegradable antiscalant and dispersant
Bactericide and Algicide
Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
Corrosion Inhibitor
Reverse Osmosis Chemicals
Oxygen Scavenger
New Product

TEL: +86-632-5366998

FAX: +86-632-5366900


ADD: Lunan high-tech Chemical Industrial Park
Tengzhou, Zaozhuang , Shandong ,China

Sodium of Polyepoxysuccinic Acid (PESA)

CAS No. : 51274-37-4;109578-44-1

Molecular Formula:   HO(C4H2O5M2)nH                Molecular weight:  400-1500

Structural Formula:

Sodium of Polyepoxysuccinic Acid (PESA)


PESA is a multivariate scale and corrosion inhibitor with non-phosphor and non-nitrogen, it has good scale inhibition and dispersion for calcium carbonate, calcium sulfate, calcium fluoride and silica scale, with effects better than that of ordinary organophosphines. When built with organophosphates, the synergism effects are obvious.

PESA has good biodegradation properties, it can be widely used in circulating cool water system in situation of high alkaline, high hardness and high pH value.PESA can be operated under high concentration index.PESA   has good synergism with chlorine and other Water Treatment Chemicals. 


Items Index
Appearance Colorless or amber transparent liquid White powder
Solid content % 40.0 min 90.0 min
Density (20℃)g/cm3 1.30 min -
pH(1% water solution) 9.0-12.0 10.0-12.0


PESA can be used in system of oilfield refill water, crude oil dehydration and boiler;

PESA can be used in circulating cool water system of steel, petrochemical, power plant, medicine.

PESA can be used in boiler water, circulating cool water, desalination plant, and membrane separation in situation of high alkaline, high hardness, high pH value and high concentration index.

PESA   can be used in detergent fields.

Package and Storage:

PESA liquid: 200L plastic drum, IBC(1000L), customers' requirement.

PESA solid: 20kg/bag, customers' requirement.

Storage for ten months in shady room and dry place.

Safety Protection:

Alkaline, Avoid contact with eye and skin, once contacted, flush with water.



polyepoxysuccinic acid;

Polyepoxysuccinic Acid(PESA);

epoxysuccinic acid homopolymer;

Polyoxirane-2,3-Dicarboxylic Acid  

2,3-oxiranedicarboxylic acid homopolymer;

poly(1-oxacyclopropane-2,3-dicarboxylic acid);