Product Description
Sodium Methallylsulfonate (SMAS) is a functional monomer containing sulfonic acid groups. It usually appears as a white crystalline powder or granular crystals, and in some cases as white flakes. The compound is nearly odorless, and its aqueous solution is clear and transparent.
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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) |
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Product Usage
Sodium Methallylsulfonate, a functional monomer with sulfonic acid groups, is mainly used in producing polycarboxylate-based concrete water reducers to enhance concrete performance. It can also act as a tertiary monomer in acrylic fiber production, improving dyeability and heat resistance.
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