2-METHYL-2-PROPENE-1-SULFONIC ACID SODIUM SALT

2-METHYL-2-PROPENE-1-SULFONIC ACID SODIUM SALT

Basic Information

CAS No.: 1561-92-8
Molecular Formula: 1561-92-8
Molecular Weight: 160.16

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product description

Sodium Methallylsulfonate (SMAS for short) is a functional monomer containing sulfonic acid groups. It is usually a white crystalline powder or granular crystal, and some products are white flaky. It has no obvious odor and its aqueous solution is transparent.


Chemical Properties

PropertyValue

Melting point

>300 °C(lit.)

Density

1.59[at 20℃]

Vapor pressure

0Pa at 20℃

Storage temp.

Inert atmosphere,Room Temperature

Form

Powder to crystal

Color

White to Almost white

Water Solubility

523g/L at 20℃

InChI

InChI=1S/C4H8O3S.Na.H/c1-4(2)3-8(5,6)7;;/h1,3H2,2H3,(H,5,6,7);;

InChIKey

JJJRVJPTNNJLLQ-UHFFFAOYSA-N

SMILES

C(C(=C)C)S(O)(=O)=O.[NaH]

LogP

-3.74 at 20℃

CAS DataBase Reference

1561-92-8(CAS DataBase Reference)

EPA Substance Registry System

Sodium methallylsulfonate (1561-92-8)


Safety Information

PropertyValue

Hazard Codes

Xi

Risk Statements

36/37/38-43

Safety Statements

26-36/37

WGK Germany

1

HS Code

2904.10.5000


Product Usage

Sodium methallyl sulfonate (SMAS), also known as 2-Methyl-2-propene-1-sulfonic acid sodium salt, is a highly effective functional monomer widely used in the synthesis of high-performance polymers. Its primary application is as a dyeing modifier in the production of acrylic fibers (polyacrylonitrile), where it significantly enhances the dye uptake and color brightness of the textile. In the construction industry, it is a key component for manufacturing high-efficiency polycarboxylic acid water reducers, improving the fluidity and strength of concrete. Furthermore, it serves as a crucial monomer in water treatment chemicals, acting as a scale inhibitor and dispersant to prevent mineral buildup in cooling systems. Its unique sulfonic acid group also makes it valuable in the production of specialized oilfield chemicals for enhanced oil recovery.

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Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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