Product name: Sodium Vinylsulfonate 25 % Aqueous Solution
CAS No: 3039-83-6
EINECS: 221‑242‑5Synonyms: Sodium Ethylenesulphonate, Vinyl sulfonic acid sodium salt, SVS‑25
Formula: C₂H₃NaO₃S
Molecular Weight: 130.10
SVS 25% Overview
SVS 25 % is a reactive anionic monomer supplied as light‑yellow aqueous solution. It carries both polymerizable vinyl double bond and strongly hydrophilic sulfonate group. When copolymerized into polymer chains, it brings permanent anionic charge, high salt tolerance, colloidal stability and hydrophilicity for finished polymers. Widely applied in polymer synthesis, water‑treatment chemicals, electroplating, textile, paper‑coating and oil‑field additives.
Typical Physical‑Chemical Properties
| Item | Typical Value |
|---|---|
| Appearance | Pale yellow clear liquid |
| Active SVS content | 25.0 ± 0.5 % wt |
| Total solid content | max 35.0 % |
| Density (20 ℃) | 1.18‑1.22 g/cm³ |
| pH (25 ℃) | 9.0‑12.0 |
| Color APHA | ≤300 |
| Crystallization point | ‑21 ℃ approx |
| Solubility | Fully miscible with water |
Main Applications
Polymer & Emulsion Polymerization
Reactive comonomer / reactive emulsifier for acrylic, styrene‑acrylic, vinyl‑acetate latex. Improve mechanical stability, freeze‑thaw resistance, salt tolerance, reduce conventional surfactant migration; for water‑borne coatings, adhesives, textile binders.
Water‑Treatment Chemicals
Copolymer with acrylic acid / maleic anhydride to produce scale inhibitors, dispersants and flocculants for cooling‑water and reverse‑osmosis systems.
Electroplating Industry
Primary brightener & leveling agent for nickel‑chrome plating bath, improve ductility, brightness and throwing power of plating layer.
Textile & Synthetic Fibers
Third‑monomer for polyacrylonitrile fiber (acrylic fiber), enhance dye‑uptake for cationic dyes; textile dye‑fixing and sizing agent.
Oil‑field & Construction Chemicals
Fluid‑loss additive for enhanced oil recovery; cement dispersant for concrete; paper‑coating dispersant; ion‑exchange‑resin modifier.
Packaging
‑ 25 kg / 200‑240 kg HDPE plastic drums
‑ 1000 L IBC tote tank
‑ ISO tank for bulk shipment
- Marking: Product name, CAS No., batch No., production date, gross/net weight.
Transportation & Storage
‑ Non‑dangerous goods, general liquid chemical cargo for sea/road/rail transport.
‑ Keep tightly sealed, store in cool, dry and ventilated warehouse, avoid direct sunlight and high temperature.
‑ Recommended storage temperature: 5‑30 ℃. Avoid long‑term heating; hydrolysis may occur under strong acid / high‑temperature conditions.
‑ Separate from strong acids, strong oxidizing agents.
‑ Shelf‑life: 12 months under original sealed packaging.
Handling Notes
‑ Irritant to skin, eyes and respiratory tract. Wear chemical goggles, chemical resistant gloves and protective clothing.
‑ Avoid inhalation of mist. In case of contact, flush eyes/skin with plenty of clean water.
‑ This brief gives typical data only and is not a product guarantee. End‑users shall verify suitability for their own process.
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