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    • Polyepoxysuccinic Acid (PESA) CAS 51274-37-4

    Polyepoxysuccinic Acid (PESA) CAS 51274-37-4

    Polyepoxysuccinic Acid, commonly abbreviated PESA, CAS 51274-37-4, is a phosphorus-free polymeric scale inhibitor supplied as an aqueous grade for cooling-water, boiler-water and process-water programmes. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 51274-37-4
    • Synonyms: Polyepoxysuccinic acid; PESA; Poly(epoxysuccinic acid)
    • Einecs: Not specified (polymeric product)
    • Molecular Formula: Not specified (polymeric scale inhibitor)
    • Grade: Industrial water-treatment grade; active content and formulation compatibility to be confirmed
    • Package: HDPE drums or IBCs for aqueous grades; pack and labelling selected for destination requirements
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    Product Description

    Polyepoxysuccinic Acid (PESA) CAS 51274-37-4 is a polymeric epoxysuccinic-acid product; it is not a phosphonate.

    Synonyms: PESA; Polyepoxysuccinic acid; poly(epoxysuccinic acid).

    CAS: 51274-37-4.

    Molecular formula: Not specified (polymeric scale inhibitor).

    It is a phosphorus-free, non-nitrogen organic polymer supplied as an aqueous liquid grade.

    It acts as a scale inhibitor and dispersant in cooling-water and process-water programmes.

    It is selected where deposition control is required in high-hardness, high-alkalinity or high-pH systems.

    It is used against calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, calcium fluoride and silica scale.

    It is commonly applied in circulating cooling-water systems, boiler-water programmes, seawater desalination and oilfield water treatment.

    It may be combined with phosphonates or other polymers when the treatment programme supports compatibility.

    Performance depends on water chemistry, temperature, concentration cycles and companion treatment chemistry.

    Grades are specified by active content and formulation compatibility rather than by CAS number alone.

    For selection, confirm system type, make-up-water analysis, operating temperature, concentration cycles and deposition concern.

    Store in closed containers and follow the applicable SDS and treatment programme for handling.

    Use suitable PPE when handling to avoid skin or eye contact and chemical exposure.

    Review the COA for active content and physical consistency.

    Confirm grade, packaging, and specification as required.

    The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

    For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Polyepoxysuccinic Acid (PESA) CAS 51274-37-4?

      A: PESA is a phosphorus-free, non-nitrogen organic polymer used as a scale inhibitor and dispersant. It is selected for cooling-water, boiler-water, desalination and process-water programmes where deposition control is required.
    • Q:

      Is PESA the same as a phosphonate?

      A: No. PESA is a polymeric epoxysuccinic-acid product rather than a phosphonate. It is often used in phosphorus-restricted formulations and may be combined with phosphonates or other polymers when the treatment programme supports it.
    • Q:

      Which types of scale can PESA help control?

      A: PESA is used against calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, calcium fluoride and silica scale. Its suitability still depends on water chemistry, temperature, concentration cycles and the other treatment chemicals present.
    • Q:

      Where is PESA most commonly applied?

      A: It is commonly used in circulating cooling-water systems, boiler-water programmes, seawater desalination, oilfield water treatment and process-water dispersant blends. It is especially relevant for high-hardness, high-alkalinity or high-pH systems.
    • Q:

      What information is needed to select a PESA grade?

      A: Confirm the system type, make-up-water analysis, operating temperature, concentration cycles, deposition concern and companion treatment chemistry. These inputs determine whether PESA is used alone or in a broader scale-inhibitor and dispersant programme.

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