Product Details
Sodium Methallylsulfonate (SMAS) is a functional monomer containing active sulfonic acid groups. It commonly presents as white crystalline powder or granular crystals, with partial specifications available in white flake form. This product 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
As a functional monomer with sulfonic acid groups, Sodium Methallylsulfonate is mainly applied in the synthesis of polycarboxylate concrete water reducers to optimize concrete performance. It also serves as a tertiary monomer in acrylic fiber production, improving the fibers' dyeability and heat resistance.
