Polyepoxysuccinic Acid (Sodium)

Molecular formula: HO(C4H2O5M2)nH
Relative molecular mass: 400-1500

CAS No.: 109578-44-1;
2,3-Oxiranedicarboxylic acid, sodium salt (1:2), homopolymer.
Sodium salt of 2,3-oxiranedicarboxylic acid, homopolymer

CAS Number: 51274-37-4;
Polyoxirane-2,3-dicarboxylic acid;
2,3-Oxiranedicarboxylic acid, homopolymer;


  1. PESA is a green, non-phosphorus, non-nitrogen, water-soluble polymer, which is anionic.
  2. PESA has good scale inhibition and dispersion performance for calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, calcium fluoride and silica scale in water, and has good synergistic effect with phosphonate compound.
  3. PESA has good biodegradation performance and wide application range, especially for cooling water system under high alkali, high hardness and high pH conditions, and can realize high concentration multiplier operation.
  4. PESA has good solubility with chlorine and good compatibility with other agents.

Technical data:
Appearance: colorless to light yellow transparent liquid
Solid content /%: ≥40.0
Density(20℃)/g*cm-3: ≥1.30
pH(1% aqueous solution): 9.0~12.0

Fields of application:
PESA is suitable for oilfield water injection, boiler water treatment and other fields;
Suitable for circulating cooling water system in steel, petrochemical, electric power, pharmaceutical and other industries;
Especially suitable for boiler water treatment, circulating cooling water treatment, seawater desalination, membrane separation, etc. in high alkalinity, high hardness, high pH and high concentration multiplier systems;
PESA can be used as calcium carbonate dispersant;
PESA is also widely used in the field of textile printing and dyeing auxiliaries;
Suitable for detergent industry.

When PESA is used in the field of water treatment, the addition amount is generally 10-30mg/L. When PESA is used as dispersant, the recommended use amount is 0.5%~3.0%, and the amount can be determined according to the test.
Since this product is anionic, it should not be shared with cationic chemical additives.

Package and storage
PESA is packed in plastic drums of 25kg, 250kg or 1250kg, or as required by the user.

Safety Protection
The product is alkaline, pay attention to labor protection during operation, avoid contact with skin and eyes as much as possible, and just rinse with plenty of water after contact.

Supplier and Manufacturer

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