General Information and Properties

CAS No. 5165-97-9

Sodium salt 2-acrylamido-2-methylpropanesulphonic acid / NAATBS /Sodium AMPS

Molecular Formula: C7H13NO4S.Na

Form Liquid
Colour Liquid amber
Odour Faint
Melting Point ca. -25 °C °C
Boiling Point ca. 110 °C °C


Leveraging on our expertise, we also supply it as its sodium salt called sodium salt of 2-acrylamido-2-methylpropane sulphonic acid (CAS No. 5165-97-9). This is normally a 50% liquid solution which is convenient to handle, thereby, making it easy to get desired flexibility in formulations to create high performance polymers.

This products is generally used by polymer manufacturers where NaAMPS acts as a comonomer alongwith other acrylic monomers like acrylamide, acrylic acid to make polymers. Numerous polymers of NaATBS can be made depending on the other co-monomer, concentrations, degree of polymerization and so on.

Depending on the polymerization molecular weight sought and the performance characteristics desired, the sodium salt is also offered in 3 grades:  2403, 2405 and 2407.



The industry applications of NaATBS are:


Emulsions for paint and paper coatings Polymers containing ATBS improve scrub resistance, dispersant performance and reduce grit formation

Raw material for water treatment: Used in the cooling tower and boilers, to inhibit Calcium, Magnesium and Silica scale formation. Also used to precipitate solids in industrial and mining effluents

Adhesives: Improve strength in pressure sensitive formulations and also make wood glue to improve adhesive strength, and thermal and mechanical properties with superior rheology

Hydrogels and super absorbents: Being super absorbents, they are used in diapers, lotions and other personal care products, due to high water absorbing capacity, electrical conductivity, slipperiness and lubricity. Also used as water retention agent

Textile auxiliaries: Used as textile sizing agents, thickeners, dispersants and non-woven emulsion binders

Detergents and cleaners: Used to improve characteristics of hydrophilicity, dispersibility, and lubricity and also enhance the cleaning efficiency of detergents and cleaners

Acrylic fibre: Gives dye receptability for acrylic fibre

Construction chemicals: In drilling operations where conditions of high salinity, high temperature and high pressure are present, ATBS copolymers are used successfully to inhibit fluid loss.

In cementing operations within deep, high temperature wells, ATBS copolymers are used as non-retarding fluid loss control agents.

Polymers to enhance oil recovery: ATBS copolymers are used in oil field environments as scale inhibitors, friction reducers and water-control polymers, and in polymer flooding applications



1200 kg IBC, 240 kg Drums, ISO Tankers