Chemical & Physical Properties
- IUPAC Name: Sodium prop-2-ene-1-sulfonate
- Molecular Formula: C₃H₅NaO₃S
- Molecular Weight: 144.12 g/mol
- Appearance: White to light yellow crystalline powder
- Solubility: Highly soluble in water (>500 g/L at 20°C), insoluble in nonpolar solvents.
- Melting Point: ~300°C (decomposes)
- pH (1% solution): 7–9
Key Features
- Dual Functional Groups:
- Allyl group (–CH₂CH=CH₂): Enables free-radical polymerization (e.g., with acrylamide or styrene).
- Sulfonate group (–SO₃⁻Na⁺): Provides hydrophilicity and anionic charge, enhancing water solubility and anti-precipitation properties.
- Chemical Stability:
- Resistant to hydrolysis and oxidation in aqueous solutions.
- Compatible with acids, alkalis, and hard water.
Industrial Applications
1. Polymer Industry
- Copolymerization Monomer: Used to synthesize:
- Water-soluble polymers (e.g., for flocculants in wastewater treatment).
- Ion-exchange resins (sulfonate groups improve cation-exchange capacity).
- Modifier: Enhances flexibility and adhesion in acrylic/vinyl polymers.
2. Textile & Dyeing
- Leveling Agent: Promotes even dye distribution on fabrics (e.g., for reactive dyes).
- Antistatic Agent: Reduces static buildup in synthetic fibers.
3. Water Treatment
- Scale Inhibitor: Prevents Ca²⁺/Mg²⁺ scale formation in boilers/cooling systems.
- Dispersant: Stabilizes suspended particles in industrial water circuits.
4. Surfactants & Emulsions
- Anionic Surfactant: Used in detergents, emulsifiers, and foaming agents.
5. Electroplating
- Brightener Additive: Improves smoothness and conductivity of metal coatings.
Safety & Environmental Data
- Toxicity: Low acute toxicity (LD₅₀ oral, rat: >2000 mg/kg).
- Handling: Avoid dust inhalation; use PPE (gloves, goggles).
- Biodegradability: Readily biodegradable (>60% in 28 days per OECD 301B).
- Regulatory Status: Complies with REACH and EPA standards.
Storage & Packaging
- Storage Conditions: Keep sealed in a dry, ventilated area at <30°C.
- Shelf Life: 2 years if stored properly.
- Packaging: 25 kg woven bags with polyethylene liner or customized options.
Why Choose Sodium Allyl Sulfonate?
- Combines polymerizability (allyl) and water solubility (sulfonate).
- Enhances performance in high-salinity or high-temperature environments.
- Cost-effective alternative to similar sulfonates (e.g., sodium vinyl sulfonate).
For technical specifications or bulk inquiries, please contact suppliers like Haihang Industry or Tokyo Chemical Industry (TCI).