AA/AMPS is the copolymer of 2-acrylamido 2-methylpropane sulfonic acid (AMPS). Due to including the 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.

In particular, for calcium phosphate, calcium carbonate, and zinc scale. When built with organophosphines, the synergic effect is obvious.

AA/AMPS copolymer is suitable to be used in water quality of high pH and high alkaline, it is one of the ideal scale inhibitors and dispersants on a high concentration index.

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Structure Formula:

AA-AMPS copolymer structure formula


AppearanceColorless or light yellow liquid
Solid content, %40.0 Min.
Free monomer (as AA), %0.8 Max.
Density (20℃), g/cm31.15 Min.
pH (1%  solution)3.5-4.5
Viscosity, mpa.s90-300


AA/AMPS copolymer is suitable for use in water quality of high pH and alkaline. It is one of the ideal scale inhibitors and dispersants on a high concentration index.

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

AA/AMPS can also be used as dyeing auxiliaries for textiles.

Packing and Storage:

200L plastic drum, IBC(1000L), customers’ requirement. Storage for ten months in a shady room and dry place.

200l plastic drum 1000l IBC


AA-AMPSA, Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer, Sulfonated Polyacrylic Acid Copolymer.


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