Polycarboxylic Antiscalant
Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer (AA/AMPS)
CAS No. 40623-75-4
【CAS】 40623-75-4 
Structural Formula: 

Properties:
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. 
Specification:
| items | index | 
| Appearance | Colorless or light yellow viscous liquid | 
| Solid content %  | 40 min | 
| Free monomer (as AA) %  | 0.8 max | 
| Density ( | 1.15 min | 
| pH (1% 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 textiles.
Package and Storage:
Normally 
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