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Hydrolyzed Polymaleic Anhydride-HPMA
  • Hydrolyzed Polymaleic Anhydride-HPMA

Hydrolyzed Polymaleic Anhydride-HPMA

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Hydrolyzed Polymaleic Anhydride-HPMA

CAS No.: 26099-09-2

HPMA is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemicaland thermal stability, decomposed temperature above 330°C. HPMA has obvious threshold effect under high temperature (350°C) and high pH (8.3) level, suitable to be used in alkaline water system or built with agents.


Appearance: Clear to umber transparent liquid

Solid content: 48.0min

Bromine value: 360mg/gmax

Average molecular weight: 400 min

pH value(1%water solution): 3.0 max

Density (20°C)g/cm3: 1.18min

Package:Normally In 250kg net Plastic Drum, IBC drum can also be used as required.


HPMA is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and Iowpressure boilers. HPMA has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can effectively inhibit carbon steel corrosion.

Information is up-to-date: 07.03.2018

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