Product Details


Sodium Salt of 2-Acrylamido-2-Methylpropane Sulfonic Acid (ATBS.Na)

Sodium Salt of 2-Acrylamido-2-Methylpropane Sulfonic Acid (ATBS.Na) is a highly reactive, highly hydrophilic functional polymerized monomer and a kind of polymerizable surfactant. It is also known as NAAMPS or NA ATBS, and has a unique numerical identifier assigned to it. ATBS Monomer and ATBS Sodium Salt are especially effective dispersants for highly polar materials, making them ideal for use in polymers of lower molecular weight. With its wide range of reactivity with vinyl monomers, Sodium Salt of 2-Acrylamido-2-Methylpropane Sulfonic Acid (ATBS.Na) is an essential component for many industrial applications.

Product Description

CAS No.5165-97-9

Atbs Chemical  Structural Formula:

Sodium Salt of 2-Acrylamido-2-Methylpropane Sulfonic Acid (ATBS.Na) Structural Formula


ATBS.Na is a highly reactive and hydrophilic polymerizable surfactant with unique electrolyte properties. It is adsorbed onto the ionosphere-formed latex particles, increasing their stability. With the use of ATBS.Na, it is possible to replace carboxylic acid monomers such as acrylic acid or methacrylic acid without compromising mechanical stability and resistance to divalent cations in acrylic, vinyl acetate-acrylate and styrene-acrylic emulsions systems. Furthermore, ATBS.Na has good hydrolysis resistance and thermal stability and imparts a smooth, flexible and comfortable warmth to coatings when emulsions are added. It also provides increased tolerance to abrasion of the coating layer.


AppearanceColorless to light yellow transparent liquid
Solid content, %50 min
Viscosity (mpas)20 max
Density (20℃), g/cm31.18-1.23
pH value8.0-10.0

Frequently Asked Questions

What is ATBS.Na?

ATBS.Na is the sodium salt of 2-acrylamido-2-methylpropane sulfonic acid. It is a white, water-soluble powder that is used as a flocculating agent, emulsifier, and dispersing agent.

What are the properties of ATBS.Na?

ATBS.Na has a molecular weight of 376.38 and a melting point of 235-240 degrees Celsius. It is soluble in water and insoluble in organic solvents such as ethanol and acetone.

What are the uses of ATBS.Na?

ATBS.Na is used as a flocculating agent in water treatment, an emulsifier in cosmetics and pharmaceuticals, and a dispersing agent in paints and coatings.

How does ATBS.Na work?

ATBS.Na works by binding to particles in water, causing them to clump together (flocculate). This makes removing the particles from water easier using filtration or sedimentation.

What are the benefits of using ATBS.Na?

The main benefit of using ATBS.Na is that it can help to improve the clarity of water by removing suspended particles. It can also help stabilize emulsions and prevent them from separating into their component parts.

What are the side effects of ATBS.Na?

There are no known side effects associated with ATBS.Na when used at recommended levels. However, overuse may result in cloudy water due to excessive flocculation.

Is ATBS safe for human consumption?

No, ATBS should not be consumed by humans or animals due to its potential toxicity

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