Maleic anhydride CAS 26099-09-2 is a low molecular weight polyelectrolyte with a general relative molecular weight of 400-800. It is non-toxic, easily soluble in water, has high chemical and thermal stability, and has a decomposition temperature above 330 ℃. This product can also be used as a cement admixture.

Chinese name: Hydrolyzed polymaleic anhydride

Nickname: Polymaleic acid

Abbreviation: HPMA

Relative molecular weight: 400~800

Brief introduction

Maleic anhydride (MAH) is hydrolyzed into polymaleic anhydride (HPMA), which is an orange yellow viscous liquid with a relative density of 1.2 (20 ℃) and an average molecular weight of about 600. It is acidic, ionizable, and soluble in cold water. This product is non-toxic.

[CAS] 26099-09-2

HPMA is a low molecular weight polyelectrolyte with a general relative molecular weight of 400-800, non-toxic, easily soluble in water, high chemical and thermal stability, and decomposition temperature above 330 ℃. There is a significant solution limit effect at high temperatures (<350 ℃) and high pH. HPMA is suitable for alkaline water quality or for use in combination with other drugs. HPMA still has good scale inhibition and dispersion effect on carbonates below 300 ℃, with a scale inhibition time of up to 100 hours. Due to its excellent scale inhibition and high temperature resistance, HPMA is widely used in flash distillation units for seawater desalination, as well as low-pressure boilers, steam locomotives, crude oil dehydration, water and oil pipelines, and industrial circulating cooling water. In addition, HPMA has a certain corrosion inhibition effect, and its combination with zinc salt has a better effect.

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