IRO Oil Drilling Chemical Co., Ltd.
Tel:+86 532 66888206
Add:Mushi Town, Tengzhou City, Zaozhuang, Shandong, China


Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid
Copolymer (AA/AMPS)

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.


items Index
Appearance Colorless or light yellow viscous liquid
Solid content ≥40%
Free monomer (as AA) ≤0.8%
Density (20℃) ≥1.15 g/cm3
pH(1% solution) 3.5-4.5
Viscosity 90-200 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.