Hydrolyzed Polymaleic Anhydride (HPMA)

• Post Date:

  Mar 05,2013

• Expiry Date:

  Mar 05,2014

• Detailed Description:

  Cas No. :26099-09-2 CAS No. 26099-09-2
  Structural formula
  
  
  Properties
  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℃. 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. 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, 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
  Items Index
  Appearance Pale yellow to umber transparent liquid
  Solid content % 48.0min
  Bromine value mg/g 80.0max
  Average molecular weight 450min
  Density (20℃)g/cm3 1.18min
  pH(1%water solution) 2.0-3.0
  
  Usage
  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. HPMA 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.
  
  Keywords:
  HPMA;Hydrolyzed Polymaleic Anhydride;poly(maleicacid);MALEIC ACID POLYMER;maleic acid homopolymer
  
  

• CAS Registry Number:

  26099-09-2

• Synonyms:

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

• Molecular Formula:

  (C₄H₄O₄)n

• Molecular Weight:

  ≤2000

• Molecular Structure:

  

• Hazard Symbols:

   C:Corrosive;
  

• Risk Codes:

  R36:;
  

• Safety Description:

  S24/25:;
  S28:;
  S36/37/39:;
  

• Company:

  Shandong IRO Water Treatment Co., Ltd     [ China ]        

• Contact:

  Sharon Li

• Tel:

  8653266888207

• Fax:

  8653285028486

• Email:

  info@irowater.com