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Product Name: Sodium Styrenesulfonate
Synonyms: Sodium 4-ethenylbenzenesulfonate
CAS Number: 27323-41-7
UN Number: Not regulated
Recommended Use: Polymer synthesis, chemical research, laboratory use
Supplier Information: Details vary by manufacturer; always consult the original supplier's documentation
Contact Numbers for Emergency: Refer to national poison control hotlines or supplier emergency contact
Address: Check manufacturer SDS for shipment origin
GHS Classification: Not classified as hazardous under current GHS criteria
Signal Word: Not applicable
Hazard Statements: Not considered hazardous under normal handling; dust or solution contact may irritate eyes and skin
Precautionary Statements: Avoid inhaling powders; minimize direct contact with skin and eyes; wash hands after handling
Potential Health Effects: Skin and eye irritation from dust or concentrated solutions; no known acute toxicity
Environmental Hazards: Possible aquatic irritation in concentrated spills
Label Elements: Many suppliers provide minimal labeling due to low hazard classification
Chemical Name: Sodium Styrenesulfonate
Formula: C8H7NaO3S
Molecular Weight: 206.19 g/mol
Purity: Typically ≥ 98% pure
Impurities: Moisture content and trace organic byproducts uncommon; contents depend on supplier synthesis process
Hazardous Components: Contains no hazardous impurities at reportable concentrations as per OSHA regulations
Eye Contact: Immediately rinse under running water for at least 15 minutes; remove contact lenses if present
Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing
Inhalation: Move to fresh air; if symptoms occur, seek medical attention
Ingestion: Rinse mouth, drink water to dilute, and seek medical advice
Symptoms: Redness, itching, or mild irritation in exposed tissue; rarely any serious effects
Medical Attention: Appropriate for persistent symptoms after exposure to dust or solutions
Suitable Extinguishing Media: Water spray, carbon dioxide, dry chemical, or foam
Unsuitable Media: Avoid full water jets where runoff control is unavailable
Special Hazards During Fire: Decomposes to release irritating or toxic fumes such as sulfur oxides, carbon oxides
Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective gear
Other Recommendations: Prevent fire run-off from contaminating soil or water systems
Combustibility: Not highly flammable; unlikely to support combustion under normal conditions
Personal Precautions: Evacuate unprotected personnel; ventilate area; avoid dust formation
Protective Equipment: Use gloves, goggles, dust mask or respirator as warranted
Spill Containment: Sweep or vacuum up; minimize dust using damp methods for larger spills
Environmental Precautions: Prevent from entering drains, sewers, or watercourses; notify authorities according to local rules
Cleanup Methods: Place in labeled containers for disposal; flush residues with plenty of water
Decontamination: Wash impacted surfaces with water and routine cleaning agents
Handling: Use in a well-ventilated zone; avoid generating dust; avoid direct contact with skin, eyes, and clothing
Hygiene Measures: Wash hands before meals, after use; never eat, drink, or smoke when handling chemical powders
Storage Conditions: Store in a cool, dry area with tightly closed packaging; avoid exposure to sunlight and humidity
Incompatible Materials: Strong oxidizers, strong acids
Storage Temperature: Room temperature
Recommended Packaging: Keep in original containers or compatible materials sealed tightly
Engineering Controls: Local exhaust ventilation; use closed systems where feasible to limit exposure
Personal Protection: Wear chemical-resistant gloves, safety goggles, lab coat or apron
Respiratory Protection: NIOSH-approved dust respirators for powder handling
Eye Protection: Safety glasses or splash-proof goggles
Skin Protection: Standard laboratory gloves; work clothing
Exposure Limits: No OSHA or ACGIH exposure limits established for this material
Environmental Exposure: Avoid release to waterways; containment methods for wastewater recommended
Appearance: White to off-white powder or crystalline solid
Odor: No distinct odor
pH (1% Solution): 7 - 9
Melting Point: Decomposes above 250°C
Boiling Point: Not applicable (decomposes before boiling)
Solubility: Soluble in water
Vapor Pressure: Negligible
Relative Density: ~1.3 (water = 1)
Partition Coefficient: Not measured
Evaporation Rate: Not volatile
Appearance Variations: May clump if exposed to humidity
Chemical Stability: Stable under normal conditions away from moisture and incompatible chemicals
Reactivity: Reacts with strong acids, bases, or oxidizers
Polymerization: Not self-polymerizing unless subjected to specialized conditions
Hazardous Decomposition Products: Produces carbon oxides, sulfur oxides at high temperatures
Conditions to Avoid: Excess heat, open flames, strong acids, moisture exposure
Corrosiveness: Not corrosive under standard storage
Incompatibilities: Strong oxidizing agents can lead to hazardous situations
Acute Toxicity: Data not fully established; related compounds have low toxicity
Irritation: Skin or eye irritation possible from dust or concentrated solution
Sensitization: Not reported by major suppliers
Chronic Effects: No data suggesting carcinogenicity, mutagenicity, or reproductive effects
Routes of Exposure: Primarily skin, inhalation, accidental ingestion
Symptoms: Mild discomfort, redness, itching
Medical Data: No significant long-term observations; standard first aid sufficient
Ecotoxicity: Not regarded as highly toxic to aquatic organisms; possible irritation at large concentrations
Aquatic Mobility: High solubility in water; potential to move in surface or groundwater
Persistence and Degradability: Data limited; aromatic sulfonates often biodegradable under environmental conditions
Bioaccumulation: Unlikely due to water solubility and low log Kow
Hazard to Plants or Animals: Minimal risk at low concentrations; avoid direct release into soil and water
Environmental Fate: Dilute concentrations expected to break down naturally over time
Waste Treatment: Dispose of in accordance with local, state, and federal regulations
Unused Material: Can often be sent to chemical waste incineration facility or landfill with proper authorization
Contaminated Packaging: Rinse with water, follow chemical packaging disposal procedures
Sewage Disposal: Avoid release to drains; consult local authorities for approval
Sustainable Practices: Recover and reuse materials when possible; minimize laboratory waste generation
EPA Regulation: Not listed as a hazardous waste under RCRA
UN Number: Not regulated
Proper Shipping Name: Not classified as a hazardous material for transport
Hazard Class: Not assigned
Packing Group: Not assigned
Labeling Requirements: No special marks required
Transport Method: Ships as non-hazardous chemical; use standard labeling and documentation
Special Precautions: Maintain packaging integrity and prevent moisture exposure during transit
TSCA Status: Listed
DSL/NDSL (Canada): Listed
REACH (EU): Not registered on all inventories; consult updated regional records
SARA Title III: Not subject to reporting requirements
California Proposition 65: Not listed
OSHA: Not regulated as a hazardous chemical
Other International Regulations: Users should consult relevant regulatory bodies in their jurisdiction for current information
