1. Product Introduction

Hydrolysed Polymaleic Anhydride (HPMA)

CAS NO. 26099-09-02

UN NO:3265  CALSS: 8

Molecular Formula: (C4H4O4)n

Hydrolysed Polymaleic Anhydride (HPMA) other names (Z)-2-Butenedioic acid homopolymer; Hydrolyzed polymaleic anhydride; HPMA; PMA; is a low molecular weight polymeride, with average molecular weight 400- 800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330 degree. HPMA has obvious threshold effect under high temperature (350degree) and high pH(8.3) level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300degree with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, In addition, HPMA has good corrosion inhibition effect when used together with zinc salt.

2. Specification or COA

3. Product application

Hydrolysed Polymaleic Anhydride (HPMA) 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. HPMA is usually used together with organic phosphonate for circulating cool water system oilfield fill water, crude oil dewatering and low-pressure boilers. HPMA can also used as additives for cement, cooling water treatment, boilers, evaporators, RO membranes, secondary oil recovery.

4. Packing & Delivery

Standard export neutral packing in 240KG/DRUM, 19.2MT=20’FCL; 1250kg/IBC, 25MT=20’FCL.

Available from stock of Hydrolysed Polymaleic Anhydride (HPMA) for prompt delivery