Polymaleic acid

Details:

Common name: Hydrolyzed Polymaleic Anhydride (HPMA)

Category:Water Treatment Chemicals

Other name: HPMA; Hydrolyzed Polymaleic Anhydride; poly(maleicacid);

 

Polymaleic Acid; MALEIC ACID POLYMER;Polymaleic Acid

CAS No.: 26099-09-2

Appearance: Liquid

Molecular formula: /

 

Brand Name: Colorcom

Shelf Life: 2 Years

Place of Origin: China

 

Product 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

 

Product Description:

HPMA 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℃. HPMA has obvious threshold effect under high temperature (350℃) 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 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. HPMA can also used as additives for cement.

 

Application: 

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 low-pressure boilers. HPMA has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can effectively inhibit carbon steel corrosion.

Package: 25 kg or 200kg per plastic barrel or 1000L IBC; can also be determined according to clients’ demand. 

Storage: Sealed in dry, room temperature.

Executive Standards: International Standard.