2-Acrylamido-2-Methylpropane Sulfonic Acid (AMPS)
  • Chemical Name : 2-Acrylamido-2-Methylpropane Sulfonic Acid
  • Abbreviation : AMPS, ATBS
  • Molecular Formula : C7H13NO4S
  • Molecular Weight : 207.24
  • EINECS : 239-268-0
  • Cas No : 15214-89-8

Introduction of AMPS:

    2-Acrylamido-2-Methylpropane Sulfonic Acid (AMPS) is a type of vinyl monomer containing sulfonic group, whose structure contains strong anionic water-soluble sulfonic groups, shielded amide groups and unsaturated double bond enabling AMPS to show an excellent overall performance, such as complexation, adsorption, bioactivity, surfactivity, hydrolytic stability and thermal stability. In aqueous solution, AMPS monomer exhibits a very slow hydrolysis rate, and its sodium aqueous solution has an excellent anti-hydrolysis performance when the PH value is higher than 9. Under acidic conditions, the anti-hydrolysis performance of AMPS homopolymer is far better than polyacrylamide.

Calcium Bromide Specifications:

Items Prime grade
Qualified grade
Appearance White crystalline powder White crystalline powder
Purity(%) ≥99.0 ≥94.0
Non-volatile matter(%) ≥99.0 ≥99.0
Acidity(mgKOH/g) 275±5 275±5
Melting point(℃) ≥185 (decomposition) ≥185 (decomposition)
Water( %) ≤0.5 ≤0.5
Iron(%) ≤0.0005 ≤0.0005
Chroma (25% water solution) ,Co-Pt ≤10 ≤20

Applications

  • Due to good nature of both copolymerization and homopolymerization, AMPS is widely used in wide range of industries, such as oilfield chemistry, water-treatment, synthetic fibers, printing and dyeing, plastic, paper-making, water-adsorbent coatings, biomedical, magnetic materials and cosmetics.

Water treatment

  • Homopolymer of AMPS monomer or its copolymers with acrylamide, acrylic acid monomer, can be used as sludge dehydrant in sewage purification process, or as preservatives of the iron, zinc, aluminum, cooper and alloy in the sealed water circulation systems. It is also used as detergent or inhibitor for heaters, cooling towers, air purifiers and gas purification devices.

Oilfield chemistry

  • AMPS as additives has been applied widely in oilfield chemistry, including oil well cement additives, treatment agent of drilling fluid, acidizing fluids,fracturing fluids, completion fluids and workover fluids additives.

Synthesis fibers

  • As an important monomer used in changing the combination property of some synthetic fiber, particularly of the acrylic fiber and the modacrylic fiber with chloride, AMPS could significantly improve the fiber whiteness, dyeability and the properties of antistatic, permeable and flame resistant, though the dosage is only 1-4% of fiber.

Paper making

  • The copolymer of AMPS and other water-soluble monomer is an indispensable chemical for all types of paper making, which can be used not only as drainage aids, adhesives, strength-increasing gents and also as pigment dispersing agent.

  • Packing: 25KG Bag.