Product Name: M-Xylenesulfonic Acid Sodium Salt
Synonyms: Sodium m-xylenesulfonate, 3-methylbenzenesulfonic acid sodium salt
CAS Number: 1300-72-7
Recommended Use: Used as an intermediate in chemical synthesis, surfactant, and sometimes in dye manufacturing
Supplier: Chemical distributors, industrial reagent providers, laboratory supply companies
Contact Information: Emergency contact numbers typically listed with distributor, accessible in local chemical emergency response directories
GHS Classification: Eye irritation, category 2A; Skin irritation, category 2; Not classified as flammable
Label Elements: Signal word: Warning; Hazard pictograms: Exclamation mark
Hazard Statements: Causes skin irritation; Causes serious eye irritation
Precautionary Statements: Wash hands thoroughly after handling; Wear protective gloves, protective clothing, and eye protection; If on skin, wash with plenty of water; If in eyes, rinse cautiously with water for several minutes
Ingredient Name: M-Xylenesulfonic Acid Sodium Salt
Chemical Formula: C8H9NaO3S
Concentration: ≥ 98% (technical grade)
Impurities: Trace amounts of toluenesulfonates, xylenesulfonic acids (other isomers)
Additives: None reported in pure form
Inhalation: Move person to fresh air; Seek medical attention if symptoms like coughing or irritation persist
Skin Contact: Remove contaminated clothing; Wash skin with soap and water for at least 15 minutes; Seek medical advice if redness or irritation develops
Eye Contact: Rinse eyes under running water for 15–20 minutes; Lift eyelids occasionally; Seek immediate medical assistance
Ingestion: Rinse mouth with water; Do not induce vomiting; Seek professional medical help and observe for gastrointestinal symptoms
Suitable Extinguishing Media: Water spray, dry chemical powder, foam, carbon dioxide
Hazards from Combustion: May produce toxic fumes of sulfur oxides, carbon oxides, sodium oxides
Protective Equipment for Firefighters: Full protective clothing including self-contained breathing apparatus
Fire and Explosion Hazards: Product does not burn easily; Dust may form explosive mixtures with air in confined spaces under specific conditions
Personal Precautions: Avoid skin and eye contact; Use suitable protective gear, including gloves and goggles
Environmental Precautions: Avoid discharge to drains, sewers, or water bodies; Inform authorities in case of large spills
Cleanup Methods: Sweep or vacuum up material; Place in closed, labeled containers for disposal; Use minimum water to wash contaminated surfaces and prevent further spread
Disposal: Dispose of in accordance with local regulations for chemical waste
Handling: Ensure adequate ventilation in work area; Minimize dust generation; Do not eat, drink, or smoke while handling the material; Wash hands after use
Storage: Store in tightly sealed containers; Keep in a cool, dry, and well-ventilated place; Separate from incompatibles like strong acids, oxidizers
Special Requirements: Label containers clearly; Protect from direct sunlight and sources of moisture; Store at ambient temperature
Exposure Limits: No specific exposure limits established for this chemical; General chemical exposure standards for nuisance dust may apply
Engineering Controls: Use local exhaust ventilation to reduce dust and airborne concentrations
Personal Protective Equipment: Safety goggles, chemical-resistant gloves (nitrile or neoprene), protective clothing
Respiratory Protection: Use dust masks or respirators if occupational exposure limits are exceeded or ventilation is insufficient
Hygiene Measures: Wash hands before breaks and after work; Remove and wash contaminated clothing before reuse
Appearance: White or off-white crystalline powder
Odor: Faint aromatic
pH (1% solution): 6.5–8.5
Melting Point: Approximately 300°C (decomposes)
Boiling Point: Not applicable (decomposes before boiling)
Solubility: Highly soluble in water
Vapor Pressure: Negligible at room temperature
Specific Gravity: 1.4–1.7 (water = 1)
Flash Point: Not flammable
Decomposition Temperature: 300°C
Other Properties: Stable under ambient conditions; Not volatile under normal temperature and pressure
Chemical Stability: Stable under recommended storage and handling conditions
Possibility of Hazardous Reactions: May react with strong acids or oxidizers to produce toxic gases
Conditions to Avoid: Excessive heat, moisture, incompatibles
Incompatible Materials: Strong acids, strong oxidizing agents
Hazardous Decomposition Products: Sulfur oxides, carbon oxides, sodium oxides under fire or thermal decomposition
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Effects: Irritates eyes and skin; May cause respiratory irritation if inhaled
Chronic Effects: No long-term studies available for chronic exposure; General good laboratory practices reduce risks
LD50 (Oral, rat): >2000 mg/kg
Skin Sensitization: Not classified as a sensitizer
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity/Reproductive Toxicity: No data available suggesting mutagenic or reproductive hazards
Target Organs: Eyes, skin, respiratory tract
Ecotoxicity: Low acute toxicity to aquatic organisms based on limited data; Excessive release may cause short-term disruption of local ecosystems due to changes in water chemistry
Persistence and Degradability: Expected to be readily biodegradable through typical wastewater treatment processes
Bioaccumulation: Not expected to bioaccumulate significantly
Mobility in Soil: Mobile in water; Can leach through soil if released in significant quantities
Other Adverse Effects: Prevent uncontrolled release to avoid long-term changes in local aquatic environments
Waste Disposal Methods: Collect waste in properly labeled containers; Dispose of through a licensed chemical waste disposal contractor; Avoid release to natural waters or landfill; Follow local, regional, and national regulations
Container Disposal: Triple rinse containers; Puncture and render unusable; Offer for recycling where permitted; Comply with hazardous waste guidelines for chemical residues
UN Number: Not regulated for ground, sea, or air transport unless mixed with hazardous substances
UN Proper Shipping Name: Not classified as a hazardous material
Transport Hazard Class: None
Packing Group: None
Environmental Hazards: Not classified as dangerous for the environment
Special Precautions: Protect containers from physical damage and water; Confirm local carriage regulations with transporter
US Federal Regulations: Not listed on major hazardous lists (TSCA, SARA, CERCLA); Not known as a hazardous air pollutant
EU Classification: Not classified as hazardous under EC Regulation 1272/2008
Inventory Status: Listed in commercial chemical inventories such as TSCA (USA), EINECS (EU), DSL (Canada), AICS (Australia)
Label Requirements: Irritant symbol, safety phrases for skin and eye protection
Other Regulatory Information: Users must comply with chemical management policies in country and region of use; Provide employee training on hazard communication
