HL-202 Hydrolyzed Polymaleic Anhydride (HPMA)
CASNo. 26099-09-2
StructuralFormula:
Properties:
HPMAis an organic fatty acid polymer, with a general molecular weight of 400-800,and is easily soluble in water. The chemical stability and thermal stabilityare very high, and the decomposition temperature is above 330 ℃. Even at hightemperatures (350 ℃) and high pH values (8.3), there is a significant solutionlimit effect. This product has a certain degree of corrosiveness and can bebiodegraded. The degradation products are harmless to the environment.
HPMA as a scale and corrosioninhibitor in industrial cooling water systems, has excellent performance,especially its high temperature resistance. It can be used for a long time in amedium of 175 ℃ without affecting its scale inhibition effect, which is about50 ℃ higher than the use temperature of polyacrylic acid. This product has agood scale inhibition effect on carbonates and phosphates, with a scaleinhibition time of up to 100 hours and a scale inhibition rate of up to 98%.
Specification:
Items | Index |
Appearance | Pale yellow to umber transparent liquid |
Solid content % | ≥50.0 |
Bromine value mg/g | ≤50.0 |
pH(1% water solution) | 2.0-3.0 |
Density (20℃) g/cm3 | 1.22-1.25 |
Remarks: This quality indicator is only for reference, and the specific indicators are subject to the contract.
Usage:
HPMA isusually used together with organic phosphonate at dosage of 1-15ppm forcirculating cool water system, oilfield fill water, crude oil dewatering andlow-pressure boilers. HPMA hasgood scale inhibition (98%) and scale stripping properties. When used togetherwith zinc salts, it can effectively inhibit carbon steel corrosion.
Packageand Storage:
200L plastic drum, IBC(1000L),customers' requirement. storage for one year in shady room and dry place.
SafetyProtection:
Acidity, Avoid contact with eye and skin, once contacted, flushwith water.
