Material Safety Data Sheet: Pyridinium Propylsulfonate

Identification

Product Name: Pyridinium Propylsulfonate
Chemical Formula: C8H13NO3S
Synonyms: 1-Pyridiniumpropylsulfonate
CAS Number: 69896-62-2
Recommended Use: Laboratory chemical, chemical synthesis, research and development
Manufacturer: Refer to supplier information
Contact Information: Emergency phone numbers provided by manufacturer or supplier
Emergency Overview: White to off-white solid, faint characteristic odor

Hazard Identification

GHS Classification: May cause skin and eye irritation, harmful if swallowed or inhaled
Signal Word: Warning
Hazard Statements: May cause mild to moderate irritation to skin, eyes, and respiratory tract
Pictograms: Exclamation mark (irritant)
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Potential Acute Health Effects: Throat, nose, and eye irritation, possible headache, dizziness
Potential Chronic Health Effects: No long-term chronic effects data available
Precautionary Statements: Avoid contact with skin and eyes, avoid inhalation and ingestion, wash hands thoroughly after handling, use proper ventilation
Other Hazards: Not listed as a carcinogen by IARC, NTP, or OSHA, not known to have reproductive toxicity or mutagenicity

Composition / Information on Ingredients

Chemical Name: Pyridinium Propylsulfonate
CAS Number: 69896-62-2
Concentration: 97-100%
Impurities: Trace by-products may result from manufacturing process, typically less than 3% combined
Other Ingredients: None reported
Molecular Weight: 203.26 g/mol
Structure: Pyridinium ring linked to propylsulfonate group

First Aid Measures

Inhalation: Move affected person to fresh air, keep at rest, seek medical attention for persistent symptoms, administer oxygen if breathing is difficult
Skin Contact: Remove contaminated clothing, wash affected area thoroughly with soap and water, seek medical advice if irritation or redness develops
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, remove contact lenses, hold eyelids apart, get medical help if irritation persists
Ingestion: Rinse mouth with water (do not swallow), do not induce vomiting unless instructed by medical personnel, seek medical advice immediately, show product label if possible
Symptoms: May cause eye redness, tearing, skin irritation, mild coughing, or gastrointestinal upset
Advice for Medical Personnel: Treat symptomatically, no known antidotes

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, dry chemical powder, carbon dioxide, or foam, avoid direct water stream on burning material
Unsuitable Extinguishing Media: None known for small quantities, avoid water jet if large spill
Specific Hazards Arising from Chemical: May evolve toxic fumes (carbon oxides, nitrogen oxides, sulfur oxides) under fire conditions
Protective Equipment: Firefighters use self-contained breathing apparatus (SCBA) and full protective gear
Special Precautions: Prevent run-off water from contaminating drains, sewers, or watercourses
Decomposition Products: Possible emission of irritant gases such as SOx, NOx, CO, CO2
Other Comments: Use water spray to cool fire-exposed containers

Accidental Release Measures

Personal Precautions: Wear suitable protective clothing, gloves, and eye/face protection, avoid dust formation, ensure adequate ventilation
Environmental Precautions: Do not let product enter drains or watercourses, avoid soil contamination
Methods for Clean-up: Sweep up and place in labeled container for proper disposal, vacuum clean spilled material using equipment with a HEPA filter as necessary, wash contaminated area with plenty of water
Prevention of Secondary Hazards: Remove all sources of ignition, avoid creating dust

Handling and Storage

Safe Handling: Use in a chemical fume hood or ventilated area, wear appropriate personal protective equipment, minimize dust generation and accumulation, avoid breathing dust, avoid all contact with eyes and skin
Storage Conditions: Store in a tightly closed container in a cool, dry, well-ventilated space, keep away from incompatible substances (strong oxidizers, acids, bases), store away from direct sunlight and moisture
Storage Class: Store according to local regulations for non-flammable solids
Other Precautions: Keep containers upright and properly labeled, segregate from foodstuffs and animal feed

Exposure Controls and Personal Protection

Engineering Controls: Provide adequate local exhaust ventilation, use enclosures or process isolation where necessary
Occupational Exposure Limits: No established exposure limits for this compound
Personal Protective Equipment: Protective gloves (chemical-resistant), eye protection (goggles, faceshield), protective lab coat or clothing, dust mask or respirator if dust is generated
Hygienic Practices: Wash hands and face after handling, remove contaminated clothing and protective equipment before entering eating or break areas
Environmental Exposure Controls: Avoid release to the environment, make provisions for safe disposal

Physical and Chemical Properties

Appearance: White to off-white crystalline solid or powder
Odor: Slight characteristic
Odor Threshold: Not determined
pH (1% solution): 3.0 - 4.0
Melting Point/Freezing Point: 162 - 168°C
Boiling Point/Range: Decomposes before boiling
Flash Point: Not flammable under standard conditions
Evaporation Rate: Not applicable
Flammability: Not classified as flammable
Vapor Pressure: Negligible (room temperature)
Vapor Density: Not available
Relative Density: 1.31 - 1.35 g/cm³
Solubility: Soluble in water, slightly soluble in ethanol
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not determined
Decomposition Temperature: >200°C
Viscosity: Not applicable (solid)

Stability and Reactivity

Chemical Stability: Stable under recommended handling and storage conditions
Reactivity: No dangerous reactions under normal conditions of use
Conditions to Avoid: Excessive heat, direct sunlight, moisture, contact with strong oxidizers or acids
Incompatible Materials: Strong acids, strong bases, oxidizing agents
Hazardous Decomposition Products: Oxides of carbon, nitrogen, and sulfur released on thermal decomposition
Polymerization: Will not occur under normal conditions

Toxicological Information

Likely Routes of Exposure: Skin contact, eye contact, inhalation, ingestion
Acute Toxicity: Not acutely toxic based on available data; estimated oral LD50 (rat): >2000 mg/kg
Skin Corrosion/Irritation: May cause minor irritation, redness, dryness with prolonged exposure
Serious Eye Damage/Irritation: May cause mild to moderate eye irritation
Respiratory or Skin Sensitization: Not expected to cause sensitization
Carcinogenicity: Not listed as carcinogenic by NTP, IARC, OSHA
Germ Cell Mutagenicity: No data available
Reproductive Toxicity: No information indicating adverse reproductive effects
STOT — Single/Repeated Exposure: No data indicating specific organ toxicity
Aspiration Hazard: Not expected to pose aspiration hazard
Symptoms Related to Exposure: May cause irritation, coughing, stomach upset, redness, tearing

Ecological Information

Toxicity to Aquatic Life: Limited data suggest low aquatic toxicity
Persistence and Degradability: May undergo slow biodegradation, stable in the environment
Bioaccumulative Potential: Expected to have low bioaccumulation due to water solubility
Mobility in Soil: Mobile in aqueous environments, may leach through soil due to solubility
Other Adverse Effects: Avoid large releases to the environment, not classified as hazardous to the environment but precaution recommended
Ecotoxicological Data: Not available for this specific compound; caution advised

Disposal Considerations

Waste Treatment Methods: Dispose of product and waste in accordance with local, regional, and national regulations, do not discharge into drains or waterways
Disposal of Packaging: Triple rinse and recycle containers if possible, otherwise dispose in compliance with official regulations
Other Disposal Recommendations: Controlled incineration in chemical incinerator with afterburner and scrubber or authorized chemical disposal firm, do not landfill with household waste, prevent contamination of ground and surface water

Transport Information

UN Number: Not regulated for transport
UN Proper Shipping Name: Not a hazardous material according to transport regulations
Transport Hazard Class: Not classified
Packing Group: Not assigned
Environmental Hazards: Not a marine pollutant
Special Precautions for User: Avoid dust generation and container damage during transport, ensure packaging remains intact and labeled
Transport Regulations: Comply with international, national, and local transport authorities’ guidelines for chemicals

Regulatory Information

TSCA (United States): Listed or exempt
EINECS/ELINCS (Europe): Listed or meets definition
REACH (Europe): Not specifically registered, use in laboratory quantities
DSL/NDSL (Canada): Listed where applicable
OSHA Hazard Communication Standard: Not classified as hazardous, requires SDS
SARA Title III (Sections 311/312): Not subject to reporting
California Proposition 65: Not listed
Other Regulations: Observe all local, regional, federal requirements for safe handling, storage, transport, disposal, and labeling of chemicals