Product Name: Sodium Xylene Sulfonate
Chemical Formula: C8H9NaO3S
Other Names: Sodium dimethylbenzene sulfonate
Recommended Use: Used as a surfactant, hydrotrope, chemical intermediate
Supplier: Manufacturer contact information required for traceability; includes name, address, phone number, and emergency telephone number
CAS Number: 1300-72-7
UN Number: Not regulated as a hazardous material for transportation
EMERGENCY HOTLINE: Available 24/7 for chemical emergency guidance
GHS Classification: Eye Irritant (Category 2A), Skin Irritant (Category 2)
Pictograms: Exclamation mark, signal word "Warning"
Hazard Statements: Causes serious eye irritation, may cause mild skin irritation, inhaling dust or mist may cause respiratory tract irritation
Precautionary Statements: Wear protective gloves and eye protection, avoid breathing spray, wash hands thoroughly after handling, clean up spills immediately
Emergency Overview: White to off-white powder or liquid with no significant odor, not classified as flammable or explosive, expected to have low health hazard in typical applications but repeated or prolonged exposure may increase irritation risk
Chemical Name: Sodium Xylene Sulfonate
Synonyms: Xylenesulfonic acid, sodium salt
CAS Number: 1300-72-7
Percent by Weight: 40-95% depending on product form
Impurities: May contain trace amounts of sodium sulfate, water, and unreacted starting materials
General Description: Sold as an aqueous solution or in dry form, concentration must be matched to the application
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, keep eye open as much as possible during rinsing, seek immediate medical attention if irritation persists
Skin Contact: Remove contaminated clothing, wash affected area thoroughly with soap and water, seek medical advice if rash or irritation develops
Inhalation: Move to fresh air, maintain airflow so breathing stays easy, seek medical attention if symptoms like coughing or shortness of breath occur
Ingestion: Rinse mouth without swallowing, drink small amounts of water if person is conscious and alert, do not induce vomiting, seek immediate medical attention
Medical Notes: Show physician this MSDS if possible, treat symptomatically based on exposure type and severity, delayed effects may require follow-up
Suitable Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or foam to control fire
Specific Hazards: Product is not considered flammable or explosive but may produce noxious fumes such as sulfur oxides, sodium oxides, or carbon oxides in extreme heat
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Special Procedures: Keep unnecessary personnel away from fire area, cool surrounding containers with water spray localize fire quickly to limit toxic fume generation
Decomposition Products: Combustion releases may include pungent fumes, care needed in confined spaces
Personal Precautions: Wear impermeable gloves, goggles, protective clothing; prevent dust formation if dry, avoid direct contact
Environmental Precautions: Do not flush into surface water, drains, or soil, contain and collect spillage to minimize environmental release
Spill Cleanup Methods: Stop source of leak, absorb liquid with inert material like sand or earth, sweep up dry material gently to reduce dust, scoop into properly labeled containers for proper disposal, rinse area with water when safe; ventilate the affected area
Disposal: Collected material must be disposed of in compliance with local, regional, and national regulations, avoid creating runoff
Handling Precautions: Avoid breathing dust, mist, or vapors, wear eye/face protection and impermeable gloves; handle in well-ventilated areas, take steps to avoid spillage; wash hands and face after use; never eat, drink, or smoke during product handling
Storage Conditions: Store in tightly closed containers, keep cool and dry, protect from moisture, exposure to heat, sunlight, and incompatible materials like acids or oxidizers
Incompatible Substances: Strong acids, strong oxidizing agents, concentrated bases
Other Notes: Label storage containers clearly, follow workplace hygiene and safety protocols
Exposure Limits: No allowable exposure limits specifically established for this chemical by OSHA, NIOSH, or ACGIH
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls where dust or mist may be generated
Personal Protection: Wear chemical-resistant gloves (nitrile, neoprene), safety goggles or face shield, long-sleeve work clothing; in case of inadequate ventilation, use a NIOSH-approved respirator
Hygiene Measures: Do not eat, drink, or smoke while using the material, wash hands thoroughly after handling
Appearance: Clear, colorless to pale yellow liquid or off-white powder, depending on grade
Odor: No significant odor
pH: 7–9 (aqueous solution 10%)
Melting Point: Not applicable to solution; powder: typically above 300 °C (decomposes)
Boiling Point: >100 °C (decomposes)
Flash Point: Not applicable, non-flammable
Solubility: Fully soluble in water
Density: Liquid (20°C): ~1.2 g/cm³
Viscosity: Aqueous solutions appear low viscosity, like water
Explosive Properties: Not considered explosive
Partition Coefficient (log Pow): Not established
Chemical Stability: Stable under normal temperatures and pressures
Reactivity: Reacts with strong acids to liberate sulfonic acid and is incompatible with strong oxidizers
Hazardous Reactions: No dangerous polymerization expected
Decomposition Products: May release sulfur compounds, sodium oxides, organic vapors if exposed to high temperatures
Conditions to Avoid: Strong heat, direct sunlight, strong acids, and oxidizing agents
Acute Toxicity: Oral LD50 (rat): >2000 mg/kg; product considered low toxicity by ingestion
Skin Corrosion/Irritation: May cause mild irritation to skin with prolonged exposure
Eye Damage/Irritation: Supports classification as an eye irritant; contact may cause pain, redness, tearing
Respiratory Effects: Inhaling dust or mist may cause temporary respiratory irritation
Long-term Effects: No evidence of carcinogenicity, mutagenicity, or reproductive toxicity identified
Routes of Exposure: Skin and eye contact most likely, ingestion and inhalation possible with unsafe handling practices
Immediate Symptoms: Local irritation, redness, cough, sore throat for inhalation, stinging or burning in eye contact
Delayed/Chronic Effects: Not anticipated under normal workplace exposure levels
Aquatic Toxicity: Generally low acute aquatic toxicity, however high concentrations may cause impact to aquatic organisms
Degradability: Expected to be readily biodegradable in the environment; breaks down through natural processes
Bioaccumulation: Not expected to bioaccumulate due to high water solubility
Mobility in Soil: High mobility, disperses quickly in water
Other Effects: Large quantities may disrupt microbial activity and aquatic life in wastewater systems
Use Advice: Prevent large discharges directly to the environment; treat in accordance with local wastewater regulations
Waste Disposal: Dispose via licensed and permitted chemical waste facility; follow all local, state, and federal regulations for chemical disposal
Container Disposal: Rinse empty containers thoroughly before disposal or recycling; do not reuse for other purposes
Special Precautions: Do not allow material to contaminate ground, water, or drainage systems
Regulatory Guidelines: Check product-specific requirements for hazardous waste regulations
UN Number: Not regulated for ground, air, or sea transport
Transport Hazard Class: Not applicable
Packing Group: Not classified
Proper Shipping Name: Sodium Xylene Sulfonate solution or Sodium Xylene Sulfonate solid
Environmental Hazards: Avoid releasing large quantities directly to the environment during transit
Special Transport Precautions: Secure containers to prevent tipping, handle gently to avoid damage, keep labels legible
OSHA Status: Not listed as a hazardous chemical in the US OSHA Hazard Communication Standard
TSCA: Listed in Toxic Substances Control Act Inventory
SARA 311/312: Classified for reporting as an irritant, no chronic effects
California Prop 65: No chemicals known to be present at reportable levels
Right-to-Know Listings: May be listed in some states due to eye/skin irritation risk, always check local requirements
Labeling Requirements: Eye/skin irritant, precautionary phrases must appear on workplace labels
International Inventories: Present on EINECS, DSL, AICS, and other major country inventories
REACH Status: Registered under REACH in the EU, not subject to further restrictions under typical use scenarios
