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Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer (AA/AMPS)  
 
CAS No.  40623-75-4
Structural Formula:
 
Properties:  
AA/AMPS is the copolymer of acrylic acid and 2-acrylanmido-2-methylpropanesulfonic acid. 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.
Specification:  
items index
Appearance Colorless or light yellow liquid
Solid content % 40 min
Free monomer (as AA)% 0.8 max
Density (20℃)g/cm3 1.15 min
pH(1% water solution) 3.5-4.5
Viscosity mpa.s 90-300
Usage:  
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:  
200L plastic drum,IBC(1000L),customers’ requirement. storage for ten months in shady room and dry place.
Synonyms:  
AA-AMPS; AA-AMPSA; Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer; Sulfonated Polyacrylic Acid Copolymer;
Keywords:  AA-AMPS