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Product Name: Methyl Sulfonyl Methane
Synonyms: MSM, Dimethyl sulfone
Chemical Formula: C2H6O2S
CAS Number: 67-71-0
Recommended Use: Dietary supplement, industrial applications
Manufacturer Information: Provided on supplier label
Emergency Contact Number: Accessible on packaging and supplier communication
Classification: Not considered hazardous under OSHA regulations
Label Elements: No pictogram, signal word or hazard statement required
Potential Health Effects: May cause mild eye or skin irritation
Environmental Hazards: None noted with normal handling and proper storage
Precautionary Statements: Minimize dust generation and avoid inhaling particulate
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Chemical Name: Methyl Sulfonyl Methane
Synonyms: Dimethyl sulfone
Purity: Typically greater than 99%, dependent on source
Additives: Trace impurities may be present, less than 1%
Inhalation: Move person to fresh air and keep comfortable, medical attention if symptoms develop
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy
Ingestion: Rinse mouth, seek medical advice if feeling unwell
Advice for Physicians: Symptomatic treatment
Flash Point: Higher than 150°C (302°F)
Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide
Specific Hazards: Combustion produces carbon oxides and sulfur oxides
Protective Equipment: Self-contained breathing apparatus, full protective gear
Fire Fighting Instructions: Cool exposed containers with water spray to prevent pressure build-up
Personal Precautions: Avoid dust formation, use proper personal protective equipment
Environmental Precautions: Avoid discharge into drains and surface water
Spill Cleanup Methods: Sweep up material without generating dust, place in suitable container for disposal
Disposal: Dispose of according to local, regional, national, and international regulations
Reference to Other Sections: See Exposure Controls and Disposal Considerations
Precautions for Safe Handling: Wear recommended protective equipment, prevent dust accumulation
Safe Storage Conditions: Store in original container, tightly closed, away from sunlight, moisture, and incompatible substances
Incompatibilities: Strong oxidizing agents
Hygiene Practices: Wash hands thoroughly after handling, do not eat, drink, or smoke in work areas
Exposure Limits: No established OSHA or ACGIH limits
Engineering Controls: Use local exhaust ventilation to control dust levels
Personal Protection:
Appearance: White, crystalline powder
Odor: Nearly odorless
Molecular Weight: 94.13 g/mol
Melting Point: 109-110°C (228-230°F)
Boiling Point: 238°C (460°F)
Solubility: Freely soluble in water, slightly soluble in ethanol
pH (10% solution): Approximately 6.5-7.5
Vapor Pressure: Negligible at ambient temperature
Density: About 1.45 g/cm³
Chemical Stability: Stable under normal temperatures and pressures
Reactivity: Minimal under recommended storage and handling
Hazardous Reactions: No hazardous polymerization anticipated
Conditions to Avoid: High temperatures, contact with strong oxidizers
Decomposition Products: Carbon oxides, sulfur oxides
Acute Toxicity: Low oral toxicity in animals, LD50 (oral, rat) greater than 8,000 mg/kg
Inhalation: Dust may cause mild respiratory tract irritation
Skin Contact: Mild irritation in sensitive individuals
Eye Contact: Mild irritation with possible redness
Chronic Effects: No evidence of carcinogenicity, mutagenicity, or reproductive toxicity in available studies
Sensitization: Rare reports of dermal sensitization
Medical Conditions Aggravated by Exposure: Pre-existing respiratory or skin conditions
Environmental Fate: Biodegradable in soil and water
Bioaccumulation: No evidence of significant bioaccumulation
Aquatic Toxicity: Not expected to be toxic to aquatic organisms
Persistence: Low environmental persistence given biological breakdown
Mobility in Soil: High solubility leads to mobility in aquatic environments
Waste Disposal Methods: Dispose in accordance with local, state, and federal regulations
Container Disposal: Empty containers may have product residue, follow proper cleaning and disposal procedures
Recycling: Recycling may not be practical due to contamination risks
Landfill Guidance: Acceptable with proper solid waste treatment
Precautions: Prevent environmental contamination by ensuring controlled disposal practices
UN Number: Not regulated for transport
Transport Classification: Not classified as hazardous for shipping (DOT, IATA, IMDG)
Packing Requirements: Use suitable, sealed containers to minimize dust and spillage
Additional Labeling: General product identification only, no hazard labeling required
Notable Restrictions: Confirm with country-specific transport regulations
Inventory Status: Listed on major chemical inventories (TSCA, EINECS, DSL, AICS, ENCS, PICCS)
OSHA Regulations: Not listed as a hazardous chemical
SARA Title III: Not a reportable substance
California Proposition 65: Not listed
Other State Regulations: None specific to this substance
International Regulations: No special requirements under REACH or GHS
Workplace Hazardous Materials Information System (WHMIS) Classification: Not controlled
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
