Product Name: Morpholinium Toluene-4-Sulphonate
Chemical Formula: C10H16N2O4S
Synonyms: Morpholinium p-toluenesulfonate; 4-Methylbenzenesulfonic acid morpholinium salt
Manufactured By: Specialty chemical plants and laboratories
Intended Use: Used as catalyst, intermediate, and antistatic agent in polymer and organic synthesis
Contact Information: Refer to supplier label for emergency phone
Recommended Restrictions: For research and industrial applications only; not approved for food, drug, or household use
Classification: Skin irritant, Eye irritant, Acute toxicity (oral, category 4)
GHS Label Elements: Pictograms (exclamation mark), Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and serious eye irritation
Precautionary Statements: Avoid breathing dust, wear gloves and eye/face protection, wash skin thoroughly after handling, do not eat, drink, or smoke during use
Symptoms: Redness, burning sensation, tearing, potential gastrointestinal distress if ingested
Special Hazards: Dust may form explosive mixture with air under rare conditions
Chemical Name: Morpholinium Toluene-4-Sulphonate
CAS Number: 3162-58-1
Percent: >98% pure by weight
Impurities: Trace amounts of toluenesulfonic acid, morpholine, residual solvents below 1%
Inhalation: Move affected person to fresh air quickly; seek medical attention for respiratory symptoms like coughing or shortness of breath
Skin Contact: Remove contaminated clothing; wash exposed skin with plenty of soap and water; medical attention if irritation persists
Eye Contact: Flush open eyes with running water for at least 15 minutes; continue rinsing while seeking immediate medical care
Ingestion: Rinse mouth with water; never induce vomiting unless directed by medical professionals; call poison control or healthcare provider promptly
Note to Physicians: Treat symptomatically; monitor for delayed respiratory complications
Suitable Extinguishing Media: Dry chemical powder, foam, or carbon dioxide; water spray for larger fires but avoid high-pressure jets
Hazardous Combustion Products: Sulfur oxides, nitrogen oxides, carbon monoxide, carbon dioxide, irritating organic vapors
Special Fire-Fighting Procedures: Wear self-contained breathing apparatus and full chemical protective clothing
Unusual Fire Hazards: Fine dust can form explosive mixtures with air; containers can burst under intense heat
Special Protective Equipment: Evacuate area if safe to do so; prevent runoff into drains and sewers
Personal Precautions: Restrict access to spill area; wear approved respiratory protection, gloves, goggles, and lab coat or full protective suit
Environmental Precautions: Prevent entry into waterways, drains, or soil; large spills may require notification to environmental authorities
Spill Cleanup Methods: Sweep up and place waste in labeled, sealed containers for disposal; clean spill area with water and detergent
Disposal of Contaminated Materials: Dispose of via licensed waste contractor according to local regulations
Handling Precautions: Engineering controls like adequate ventilation, local exhaust; handle in closed systems or inside fume hoods
Avoid: Creating dust; direct skin, eye, or clothing contact; breathing dust or vapors
Hygiene Measures: Wash hands and face thoroughly after use; do not consume food or beverages near product
Storage Requirements: Store in cool, dry, well-ventilated facilities in tightly-sealed original packaging
Incompatible Materials: Strong oxidizing agents, acids, and alkalis
Special Storage Notes: Protect from moisture, direct sunlight, extreme temperatures
Exposure Limits: No specific occupational exposure limit established for this compound; observe good laboratory practice
Engineering Controls: Fume hood use, dust extraction, mechanical ventilation
Personal Protection: Chemical-resistant gloves (nitrile, butyl rubber), safety goggles with sideshields, lab coats or coveralls
Respiratory Protection: NIOSH-approved dust mask or respirator if dust or aerosol generation likely
Other Protection: Eye wash station, emergency shower in work area
Appearance: White or off-white crystalline powder
Odor: Faint organic or amine-like odor
Odor Threshold: Not available
pH (1% solution): 5.5–7.0
Melting Point: 200–220°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable (solid)
Evaporation Rate: Not volatile
Vapor Pressure: Negligible at room temperature
Solubility: Easily soluble in water, methanol, and ethanol
Partition Coefficient (log Kow): No data
Density: 1.27–1.32 g/cm³
Decomposition Temperature: >220°C (liberates toxic fumes)
Chemical Stability: Stable under recommended storage conditions
Conditions to Avoid: Exposure to moisture, strong heat sources, and incompatible chemicals
Incompatible Materials: Strong oxidizers, strong acids, strong bases
Hazardous Decomposition Products: Toxic gases such as carbon oxides, sulfur oxides, nitrogen oxides
Polymerization: Will not occur under standard use
Acute Toxicity (Oral): LD50 in rats 500–2000 mg/kg (estimated)
Routes of Exposure: Inhalation, ingestion, direct skin and eye contact
Symptoms: Burning eyes, skin irritation, coughing or sneezing, stomach upset if swallowed
Chronic Exposure: No long-term studies in humans, may cause allergic sensitization upon repeated contact
Carcinogenicity: Not classified as a carcinogen by IARC, NTP, or OSHA
Mutagenicity, Reproductive Toxicity: No data available in public literature
Target Organs: Eyes, skin, respiratory system, gastrointestinal tract
Ecotoxicity: Harmful to aquatic organisms based on structural similarity to related sulfonates
Persistence and Degradability: Expected to be partially biodegradable in water and soil; further studies needed
Bioaccumulation: Not expected to bioaccumulate in aquatic life (low log Kow predicted)
Mobility in Soil/Water Systems: Water-soluble; may leach through soil layers
Other Adverse Effects: Potential for eutrophication from runoff if released in large volumes
Waste Disposal: Treat as hazardous chemical waste; collect in sealed, labeled containers
Disposal Methods: Incinerate in approved facility or landfill per chemical waste regulations
Container Handling: Rinse thoroughly before recycling or disposal; do not reuse containers for other purposes
Regulatory Compliance: Dispose in accordance with federal, state, and local environmental control regulations
UN Number: Not classified by UN as dangerous for transport
Transport Hazard Class: Not regulated under ADR, IMDG, IATA
Packing Group: None assigned
Environmental Hazards: Not classified as marine pollutant but precautions for large shipments apply
Special Transportation Measures: Use secure packaging; protect from moisture and physical damage during transit
US TSCA Inventory: Chemical listed or meets criteria for exemption
REACH (EU): Pre-registered or registered for industrial use
OSHA HazCom: Considered hazardous; subject to workplace labeling and SDS requirements
WHMIS (Canada): Controlled product; skin and eye irritant
Other National Inventories: Listed in China IECSC, Japan ENCS, Korea ECL, Australia AICS
Other Requirements: All local, national, and international regulations concerning handling, use, and disposal must be observed
Right-to-Know: Included in relevant state and international lists of hazardous substances
