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  • sell HPMA
       
  Post Time： 2008-07-15  
  Expiry Date： 2009-07-10  
  Category： > Chemicals > High Polymers  
  Keywords： HPMA  polymer  dispersant        
  • Details
  • Hydrolyzed Polymaleic Anhydride (HPMA)

    CAS 26099-09-2
    Dequest P9000

    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:

    Appearance Clear 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:
    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.

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Company Name︰ Shandong Taihe Watet Treatment Co.,Ltd  
Company Address︰ xiwangzhuang town,shizhong district  
Tel︰ 86-632-5113066  
Fax︰ 86-632-3460156  
Contact︰ Tony Hu ( sales )  
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  • Copmany Name: Shandong Taihe Watet Treatment Co.,Ltd   Contact: Tony Hu
  • Address: xiwangzhuang town,shizhong district
  • TeL: 86-632-5113066   Fax: 86-632-3460156
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