2-Acrylamido-2-methylpropane sulphonic acid (AMPS)

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AMPS structural formula


2-Acrylamido-2-methylpropane sulphonic acid (AMPS) is a chemical compound that belongs to the class of sulfonic acid monomers. Its copolymers or homopolymers with different molecular weight can be widely used due to unique formular structure—containing sulfonic acid group and unsaturated radical, thus showing excellent properties in many aspects.

2-Acrylamido-2-methylpropane sulphonic acid is highly soluble in water, which makes it suitable for various water-based applications.

AMPS is typically used as a monomer or as part of a polymer rather than in its pure form. The properties and applications of AMPS can vary depending on its specific use and how it is incorporated into various materials and products.


ItemsH100 Qualified ClassH200 Ordinary ClassH300 Excellent ClassH500 Top Class
AppearanceWhite Powder
Chroma (25%water solution)≤60≤60≤30≤20
Acid number265~275265~275265~275265~275
Melting Point≥185℃≥185℃≥185℃≥185℃


2-Acrylamido-2-methylpropane sulfonic acid (AMPS) is a versatile chemical compound that finds a wide range of applications across various industries due to its unique properties, particularly its high water solubility and ionic nature. Here are some of the common applications of AMPS:

Superabsorbent Polymers (SAPs): 2-Acrylamido-2-methylpropane sulphonic acid is a key component in the production of superabsorbent polymers. These polymers have the ability to absorb and retain large amounts of water or aqueous solutions, making them ideal for use in products like diapers, sanitary pads, adult incontinence products, and agricultural soil conditioners. AMPS-based SAPs can also be used in the oil industry for water control in oil wells and drilling fluids.

Water Treatment: AMPS is used in water treatment processes to improve the removal of impurities and suspended solids from water. It can function as a coagulant and flocculant aid in water purification, helping to clarify and clean water for drinking, industrial processes, and wastewater treatment.

Specialty Polymers: 2-Acrylamido-2-methylpropane sulphonic acid is copolymerized with other monomers to create specialty polymers with unique properties. These specialty polymers can be tailored for specific applications, such as enhanced oil recovery, where they are used to improve the flow of oil from reservoirs.

Textile Industry: AMPS-based polymers are used in the textile industry as finishing agents to enhance the performance and properties of fabrics. They can impart properties such as stain resistance, water repellency, and wrinkle resistance to textiles.

Oil and Gas Industry: In addition to enhanced oil recovery, AMPS is used in drilling fluids and cement slurries to control fluid loss and improve the performance of drilling operations. It can also be found in various oilfield chemicals.

Ion Exchange Resins: Cross-linked AMPS-based resins are used in ion exchange processes for applications such as water softening, purification, and metal recovery. These resins can selectively remove or exchange specific ions in solution.

Adhesives and Sealants: AMPS-based polymers are used in adhesive and sealant formulations to improve adhesion and cohesion properties. They can enhance the bonding strength and durability of adhesives and sealants.

Paper Industry: AMPS-based polymers are used as retention aids and drainage aids in the papermaking process to improve the formation and strength of paper products.

Agriculture: AMPS-based superabsorbent polymers are used in agriculture to improve soil moisture retention, particularly in arid and drought-prone regions. This can help increase crop yields and reduce water usage.

Cosmetics and Personal Care: AMPS-based polymers are used in cosmetic and personal care products, such as hair styling products and skin care formulations, to enhance product performance and consistency.

Paints and Coatings: AMPS-based polymers can be added to paint and coating formulations to improve their adhesion, durability, and resistance to moisture.

These applications highlight the versatility of 2-Acrylamido-2-methylpropane sulfonic acid and its importance in various industries where water absorption, ionic interactions, and performance-enhancing properties are required. It’s important to note that the specific formulation and use of AMPS-based products can vary widely depending on the industry and application.

Package and Storage:

25kg PE bag. Storage for one year in shady and dry places.