Hydrolyzed Polymaleic Anhydride (HPMA) - Polycarboxylic antiscalant

Hydrolyzed Polymaleic Anhydride (HPMA)

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℃.

Features

Properties:

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.

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

Usage:

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 and Storage:

200L plastic drum, IBC(1000L), customers' requirement. storage for one year in shady room and dry place.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.

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