Description

Hydrolyzed Polymaleic Anhydride (HPMA) CAS No. *********2 Properties of HPMA: HPMA is a low molecular weight polymeride, with average molecular weight ******0. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above **0. HPMA has obvious threshold effect under high temperature (**0) 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 **0 with effective time as long as **0 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. Specification of HPMA: Appearance: Pale yellow to umber transparent liquid Solid content %: *8.0 min Bromine value mg/g: *0.0 max Average molecular weight: **0 min pH(1% solution): 2.**3.0 Density (*0)g/cm3: 1.*8 min Usage of HPMA: HPMA is usually used together with organic phosphonate at dosage of ***5ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. HPMA has good scale inhibition (*8%) and scale stripping properties. When used together with zinc salts, HPMA can effectively inhibit carbon steel corrosion. Package and Storage of HPMA: Normally In **0kg net Plastic Drum, IBC drum can also be used as required. Storage for one year in room shady and dry place. Safety Protection of HPMA: Acidity, Avoid contact with eye and skin, once contacted, flush with water. Keywords: HPMA Related Products: Hydrolyzed Polymaleic Anhydride (HPMA) *-Hydroxyphosphonocarboxylic Acid (HPAA)