Functional Monomer – Contains active sulfonic acid groups, making it useful in various polymer applications.
High Purity and Appearance – Available as white crystalline powder, granular crystals, or white flakes, reflecting good quality.
Odorless – Exhibits no noticeable odor, suitable for sensitive applications.
Clear Aqueous Solution – Dissolves in water to form a transparent solution, ensuring easy processing and uniformity.
Sodium Methallylsulfonate (SMAS) is a functional monomer that contains sulfonic acid groups. It typically appears as a white crystalline powder or granular crystals, with some products available in white flake form. The compound is virtually odorless, and its aqueous solution is clear and transparent.
2-METHYL-2-PROPENE-1-SULFONIC ACID SODIUM SALT Chemical Properties
| 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
| 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 Methallylsulfonate, a functional monomer containing sulfonic acid groups, is primarily used in the production of polycarboxylate concrete water reducers to improve concrete performance. Additionally, it can serve as a tertiary monomer in the manufacture of acrylic fibers, enhancing their dyeability and heat resistance.
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