Changzhou Kewei Tianshi Environmental Technology Co.,Ltd.

HPMA

• Category :

  Catalyst and Auxiliary/Water Treatment Chemicals

• Synonyms :

  PolymaleicacidAq;Hydrolysed Polymaleic Anhydride;Hydrolyzed Polymaleic Anhydride;Hydrolized polymaleic anhydride;HPMA;Polymaleic Acid;

• CAS NO :

  26099-09-2

• EC NO :

• Molecular Formula :

  (C₄H₄O₄)n

• Molecular Weight :

  ≤2000

• Main Specifications :

• Packing :

  200Liter Plastic Barrel or IBC Tank

• Product description :

  1. Introduction: 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 330C. has obvious threshold effect under high temperature (350C) 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 300C with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, 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, has good corrosion inhibition effect when used together with zinc salt. can also used as additives for cement. 2. Product Advantages: 1) 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°C. 2) HPMA has obvious threshold effect under high temperature (350°C) 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°C with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, 3) 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. 4) HPMA has good corrosion inhibition effect when used together with zinc salt. 5) HPMA can also used as additives for cement. 3. Specification: Appearance: Brownish Yellow Liquid Solid content %: 50±2.0% Bromine value mg/g: 180Max Molecular Weight: 520-850 pH(1% solution): 2.0-3.0 Density (20°C)g/cm3: 1.18 min Viscosity ( 25°C), mpa.s: 12-30 cps 4. Application Method & Notes: 1) 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. 2) HPMA has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can effectively inhibit carbon steel corrosion.

• Uses :

  Cooling Water Treatment

• Molecular Structure :