Polyacrylic Acid (PAA)
  Polyacrylic Acid Sodium (PAAS)
  Hydrolyzed Polymaleic Anhydride (HPMA)
  Copolymer of Maleic and Acylic Acid (MA/AA)
  Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer (AA/AMPS)
  lic Acid-2-Hydroxypropyl Acrylate Copolymer (T-225)
  Acrylic Acid/Acrylate/Phosphonic Acid/Sulfosalt Tetra-copolymer (SD-241)
  SD-613 Acrylic-acrylate-sulfosalt copolymers
  Copolymer of Phosphono and carboxylic Acid (PCA)
  SD-1100 Sodium Polyacrylate
  SD-2000 Modified Sodium Polyacrylate
  SD-3100 Carboxylate-Sulfonate-Nonion Tri-polymer
  SD-904 aqueous dispersant
  Polycarboxylic Acid Water-Reducing Agent
  Polyepoxysuccinic Acid (PESA)
  Sodium of Polyaspartic Acid (PASP)
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Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer (AA/AMPS)
Product Model:[CAS No.] 40623-75-4
CAS No.  40623-75-4
Structural Formula:

AA/AMPS is the copolymer of acrylic acid and 2-acrylanmido-2-methylpropanesulfonic acid (AMPS). Due to including carboxylic group (scale inhibition and dispersion) and sulfonic acid group (strong polarity) in this copolymer, AA/AMPS has high calcium tolerance and good scale inhibition for calcium phosphate, calcium carbonate and zinc scale. When built with organophosphines, the synergic effect is obvious. AA/AMPS is suitable to be used in water quality of high pH and high alkaline, it is one of the ideal scale inhibitor and dispersant on high concentration index.


Colorless or light yellow viscous liquid
Solid content %
40 min
Free monomer (as AA)%
0.8 max
Density (20”ę)g/cm3
1.15 min
pH(1% solution)
Viscosity mpa.s

AA/AMPS can be used as scale inhibitor and dispersant in open circulating cool water system, oilfield refill water system, metallurgy system and iron & steel plants to prevent sediment of ferric oxide. When built with organophosphorines and zinc salt, the suitable pH value is 7.0~9.5.
AA/AMPS can also be used as dyeing auxiliaries for textile.

Package and Storage:
Normally In 250kg net Plastic Drum, IBC drum can also be used as required.Storage for ten months in room shady and dry place.

AA-AMPS; AA-AMPSA; Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer; Sulfonated Polyacrylic Acid Copolymer;
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