CAS No. 26099-09-2
Structural Formula:
Properties:
Hydrolyzed Polymaleic Anhydride 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℃.
Hydrolyzed Polymaleic Anhydride 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,
Hydrolyzed Polymaleic Anhydride 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,
Hydrolyzed Polymaleic Anhydride has good corrosion inhibition effect when used together
with zinc salt. Hydrolyzed Polymaleic Anhydride can
also used as additives for cement.
Specification:
| items |
index |
| Appearance |
Pale
yellow to umber transparent liquid |
| Solid content % |
48.0
min |
| Bromine value mg/g |
80.0
max |
| Average molecular weight |
450 min |
| pH(1% solution) |
2.0-3.0 |
| Density (20℃)g/cm3 |
1.18
min |
Usage:
Hydrolyzed Polymaleic Anhydride 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.
Hydrolyzed Polymaleic Anhydride 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.
Synonyms:
HPMA;
Hydrolyzed Polymaleic Anhydride;
poly(maleicacid);MALEIC ACID POLYMER;maleic acid homopolymer
