Description

2-Acrylamido-2-Methyl-1-Propanesulfonic Acid Sodium Salt (CAS NO 5165-97-9) is a high-purity, water-soluble anionic monomer renowned for its exceptional hydrolytic stability and resistance to divalent cations. This compound is a critical building block for synthesizing advanced polymers with superior performance characteristics. It is essential for formulators and manufacturers in industries requiring durable, high-performance materials under challenging conditions.

Application

• Superabsorbent Polymers (SAPs): A key monomer for enhancing the absorption rate, capacity, and gel strength of SAPs used in hygiene products (diapers, adult incontinence pads) and water-retention agents for agriculture.
• Enhanced Oil Recovery (EOR): Used in synthesizing polymers for mobility control and conformance improvement in oilfield applications, offering excellent thermal and salt tolerance.
• Water Treatment Chemicals: Serves as a co-monomer for scale and corrosion inhibitors, dispersants, and flocculants in industrial water treatment systems, including cooling and boiler water.
• Personal Care & Cosmetics: Employed in hair fixatives, styling gels, and skincare formulations to provide film-forming, thickening, and conditioning properties with low irritation potential.
• Dispersants & Stabilizers: Used in the production of pigments, dyes, and ceramic processing aids to improve dispersion stability and prevent agglomeration.
• Textile & Paper Chemicals: Functions as a co-monomer in binders, coatings, and sizing agents to improve water resistance, strength, and printability.
• Adhesives & Sealants: Imparts improved adhesion, water resistance, and durability to acrylic and other polymer-based adhesive systems.

Basic Information

Product Name	2-Acrylamido-2-Methyl-1-Propanesulfonic Acid Sodium Salt
CAS No.	5165-97-9
Molecular Formula	C7H12NNaO4S
Molecular Weight	229.23 g/mol
Synonyms	AMPS® Sodium Salt; Sodium 2-Acrylamido-2-methylpropanesulfonate; NaAMPS; 2-Acrylamido-2-methylpropane-1-sulfonic acid sodium salt; Acrylamidomethylpropanesulfonic acid sodium salt; AMPS Na; ATBS Na; Sodium acrylamido-tert-butylsulfonate; 1-Propanesulfonic acid, 2-acrylamido-2-methyl-, sodium salt (1:1)
EINECS	257-960-2

Quality Control

Our 2-Acrylamido-2-Methyl-1-Propanesulfonic Acid Sodium Salt is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) detailing assay, impurity profiles, and physical parameters are available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
pH (5% aqueous solution)	6.0 - 8.0
Residual Monomer (Acrylamide)	≤ 50 ppm
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.