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Hydrolyzed Polymaleic Anhydride
HPMA
| CAS No.: 26099-09-2 |
Molecular Weight: 400-800 |
Synonyms: Belclene 200, PMA, Dequest P9000, Homopolymer of Maleic Acid, Polymaleic Acid
Properties:
HPMA has 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.
HPMA has good scale inhibition against carbonate and phosphate scales under temperature 300℃ with effective time as long as 100 hours. It has good corrosion inhibition effect when used together with zinc salt.
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:
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. HPMA can also used as additives for cement.
Package:
200L plastic drum,IBC(1000L), as per requirement.