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Hydrolyzed Polymaleic Anhydride (HPMA)

Hydrolyzed Polymaleic Anhydride (HPMA)

Good scale inhibition and high temperature tolerance properties. Used in flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems.

    CAS No. 26099-09-2

    Structural Formula: 


    Synonyms: 

    HPMA; Homopolymer of maleic acid; Hydrolyzed Polymaleic Anhydride; poly(maleicacid); Polymaleic Acid; maleic acid polymer; Polymaleic Acid

     

     

    Properties:

    HPMA has good scale inhibition against carbonate and phosphate scales under temperature 300℃ with effective time as long as 100 hours.

    Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems.

    In addition, HPMA has good corrosion inhibition effect when used together with zinc salt.

     

     

    Specification: 

    Items

    Index

    Appearance

    Pale yellow to umber transparent liquid

    Solid content %

    50.0 min

    Bromine value mg/g

    50.0 max

    pH(1% water solution)

    2.0-3.0

    Density (20℃) g/cm3

    1.22-1.25



    Application:

    Flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. 

    HPMA with zinc salt for corrosion inhibition.  

    Additives for cement. 


    Safety Protection: 

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


    Product Information and Downloads

    Yuanlian-MSDS-HPMA.pdf