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Lonwin Industry Group Limited

Hydrolyzed Polymaleic Anhydride, Hpma, Polymaleic Anhydride manufacturer / supplier in China, offering Hydrolyzed Polymaleic Anhydride, High Quality Diazolidinyl Urea Chinese Producer, Perfluorobutanesulfonic Acid Potassium Salt and so on.

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Supplier Homepage Product Additive Hydrolyzed Polymaleic Anhydride

Hydrolyzed Polymaleic Anhydride

FOB Price: US $900 / kgs
Min. Order: 1,000 kgs
Min. Order FOB Price
1,000 kgs US $900/ kgs
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Port: Shanghai, China
Production Capacity: 2400mt
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Basic Info
  • Model NO.: Hydrolyzed Polymaleic Anhydride
  • Classification: Chemical Additives
  • Appearance: Liquid
  • Trademark: Lonwin
  • Specification: Polymaleic Anhydride purity 48%min
  • HS Code: 3402900090
  • Efficacy: Promote Healthy & Growth
  • Type: Stabilizers
  • Color: Brown
  • Transport Package: IBC or 200kgs Drum
  • Origin: Made by Lonwin
Product Description
Quick Details
Chemical Auxiliary Agent
CAS No.:
Other Names:
(C4H4O4) n
Place of Origin:
Shanghai, China (Mainland)
antiscale dispersant
Water Treatment Chemicals, Industrial circulating water and Boiler water
Brand Name:
Model Number:
as antiscalant and disincrustant.
Chemicals Auxiliary Agent
Light yellow Solution to slightly hazy
Solid content%:
Product name:
similar to:
Ciba-Geigy Belclene200, Dequest P9000
Other name:
Homopolymer of Maleic Acid
sample time:
7 dasys-HPMA
200kg HPMA drum
Packaging & Delivery
Packaging Details:Normally in 200L plastic drum, IBC(1000L) can be used as required. Storage for one year in room shady and dry place.

Product Name:  Homopolymer of Maleic Acid (HPMA) used in alkaline water system





HPMA (similar to Ciba-Geigy Belclene200, Dequest P9000) is maleic acid polymeride, no toxicity, soluble in water, high chemical stability and thermal stability, decomposed temperature above 330 oC. It is suitable to be used in alkaline water system. 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 and industrial circulating cool water systems. In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA can also be used as additives for cement, saline soil conditioner.


CAS No. 26099-09-2                              Molecular Weight: 400-700

Molecular Formula: (C4H4O4) n 








AppearanceLight yellow to umber transparent liquid
Solid content%48
PH value2.0-3.0
Bromine value (mg/g)≥350




HPMA is an excellent antiscale dispersant, the scale inhibition performance is much better than other polymers, inhibition effect on calcium carbonate in particular.





1)HPMA polymeride excels in the high temperature heat transfer of cooling water conditions, such as extremely high temperature, it will maintain excellent heat dispersion effect by its superior antiscale dispersancy.

2)HPMA polymeride is the superior antiscalant and descalant of choice for boiler water treatment formulations as it provides high temperature resistance. The polymer makes it possible to easily transport iron with calcium and phosphate containing sludges for removal during blowdown.




1)  Industrial circulating water: as antiscalant and disincrustant.

2)  Boiler water: HPMA polymeride is highly resistant to breakdown in aqueous solution under conditions of high temperature, pressure and pH. 


Package and Storage


Package and Storage Recommendation

Package: Freezing or long term cold storage of HPMA maleic acid polymeride may cause some separation of the components. Although product performance is not impaired as long as the whole container is heated and well mixed, it is recommended to keep HPMA maleic acid polymeride from freezing.


Storage:Normally in 200L plastic drum, IBC(1000L) can be used as required. Storage for one year in room shady and dry place.

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