Product Name: Sodium Toluene-4-Sulphonate
Synonyms: p-Toluenesulfonic acid sodium salt, 4-Methylbenzenesulfonic acid sodium salt
Chemical Formula: C7H7SO3Na
CAS Number: 657-84-1
Recommended Use: Chemical intermediate, cleaning agent, dye and pigment manufacturing
Manufacturer: Refer to specific supplier details on packaging label
Contact for Emergency: National Poison Control Center or local emergency number
Classification: Eye Irritation – Category 2, Skin Irritation – Category 3
GHS Label: Exclamation mark symbol
Signal Word: Warning
Hazard Statements: Causes serious eye irritation, may cause mild skin irritation
Precautionary Statements: Wash thoroughly after handling, wear eye protection, avoid contact with skin and eyes, do not breathe dust
Unusual Hazards: Dust can irritate respiratory system, spills may create slippery surface
Chemical Identity: Sodium Toluene-4-Sulphonate
Purity: Typically ≥98%
Impurities: Water, trace inorganic salts, unreacted starting materials below 1%
Other Ingredients: None expected at significant concentrations
Inhalation: Move affected person to fresh air immediately, seek medical attention if symptoms persist (cough, shortness of breath, sneezing)
Skin Contact: Wash with plenty of soap and water, remove contaminated clothing, medical attention for persistent irritation
Eye Contact: Rinse eyes carefully with clean water for at least 15 minutes, consult a doctor if irritation continues
Ingestion: Rinse mouth, do not induce vomiting, seek medical help if feeling unwell
Symptoms: Redness, burning, watery eyes, skin dryness, coughing if inhaled
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Media: High pressure water streams may spread material
Hazards on Combustion: Releases toxic gases such as sulfur oxides and sodium oxides
Protective Equipment for Firefighters: Full protective clothing with self-contained breathing apparatus
Fire-fighting Procedures: Move containers from fire area if safe, cool surrounding tanks with water spray
Explosion Risks: Not considered explosive, avoid dust formation that could create a dust cloud ignition risk
Personal Precautions: Evacuate unnecessary personnel, avoid breathing dust, ventilate area
Protective Equipment: Gloves, goggles, approved respiratory protection for dusty environments
Environmental Precautions: Prevent further leakage or spillage if safe, avoid entering drains, sewers, watercourses
Cleanup Methods: Sweep up and place in suitable containers for disposal, wash area with plenty of water, dispose of in accordance with local regulations
Handling: Use only in well-ventilated areas, avoid formation of dust, do not eat, drink, or smoke while handling, wash hands after use, wear appropriate personal protective equipment
Storage Conditions: Store in tightly closed container in a cool, dry, well-ventilated place away from incompatible materials like strong oxidizers and acids
Incompatible Materials: Strong acids, strong oxidizers
Packaging Materials: Corrugated fiberboard drums, polythene or polypropylene-lined bags
Exposure Limits: No specific Occupational Exposure Limits established by OSHA, ACGIH, NIOSH (treat as nuisance dust – total dust: 15 mg/m^3, respirable fraction: 5 mg/m^3)
Engineering Controls: Local exhaust ventilation, dust collection systems
Eye Protection: Safety goggles with side shields
Hand Protection: Chemical resistant gloves (nitrile, neoprene)
Skin Protection: Wear long-sleeved clothing, lab coat
Respiratory Protection: Approved dust mask or respirator in poorly ventilated areas
Appearance: White to off-white crystalline powder
Odor: Odorless
pH (1% solution): 7–9
Melting Point: Decomposes above 400°C
Boiling Point: Not applicable (decomposes before boiling)
Flash Point: Not flammable
Solubility: Freely soluble in water
Density: 1.45–1.55 g/cm³
Vapor Pressure: Not volatile
Partition Coefficient (n-octanol/water): Not established
Other Properties: Non-volatile, non-combustible, stable under normal conditions
Chemical Stability: Stable under standard transport and storage conditions
Hazardous Reactions: Reaction with strong acids or oxidizing agents produces heat and possible decomposition
Conditions to Avoid: Exposure to excessive moisture and heat, open flames
Incompatible Materials: Strong acids, strong oxidizers
Hazardous Decomposition Products: Sulfur oxides, toluene, sodium oxides on combustion or decomposition
Acute Toxicity (Oral LD50, rat): >2000 mg/kg (low toxicity)
Skin Corrosion/Irritation: May cause mild irritation on prolonged or repeated contact
Serious Eye Damage/Irritation: Causes eye irritation
Respiratory Sensitization: No data available
Carcinogenicity: Not listed as carcinogen by IARC, ACGIH, OSHA
Mutagenicity: No relevant data
Other Acute Effects: Inhalation of large amounts may cause respiratory irritation, coughing, shortness of breath
Ecotoxicity: Not acutely toxic to aquatic organisms at typical use concentrations
Persistence and Degradability: Readily biodegradable by microorganisms
Bioaccumulative Potential: Low potential for bioaccumulation due to high water solubility
Mobility in Soil: High mobility in water, risk of penetration to groundwater if released in large quantities
Other Adverse Effects: Prevent material from entering surface waters to minimize ecological impact
Waste Treatment Methods: Collect and place material into containers suitable for disposal at licensed facility
Disposal of Packaging: Rinse thoroughly before recycling or disposing. Follow all local, state, and federal regulations
Incineration: Allowed at approved waste facilities
Do Not Dispose: In municipal sewers or open water bodies
Regulatory References: Disposal must follow guidelines set by local environmental authorities
UN Number: Not classified as dangerous goods
UN Proper Shipping Name: Not hazardous
Transport Hazard Class: Not regulated
Packing Group: None assigned
Environmental Hazards: Not a marine pollutant
Special Precautions: Transport in closed containers, avoid dust emission, protect against moisture
Label: Standard labeling for non-hazardous chemical products
TSCA Inventory: Listed
REACH Status: Complies with European Union REACH regulation
SARA Title III: Not regulated under SARA
California Proposition 65: Not listed
Regulatory Requirements: Use of personal protective equipment, confirmed suitable disposal and handling standards, adherence to environmental release limitations as set out at national and regional level
