Chemical Name: 1-Propanesulfonic Acid
CAS Number: 1120-71-4
Synonyms: n-Propylsulfonic Acid, Propane-1-sulfonic acid
Recommended Use: Chemical intermediate, laboratory reagent
Supplier: Refer to manufacturer for supplier details
Contact for Information: Health and safety department of the supplier
Emergency Number: Local emergency response or poison control center
GHS Classification: Corrosive to metals, Skin corrosion/Irritation Category 1B, Serious Eye Damage Category 1
Hazard Statements: Causes severe skin burns and eye damage; may be harmful if swallowed or inhaled
Pictograms: Corrosive symbol
Signal Word: Danger
Precautionary Statements: Avoid breathing fumes, vapors, or mists; wash skin thoroughly after handling; wear protective gloves, clothing, and eye protection
Potential Health Effects: Strong irritant to eyes, skin, and respiratory tract; accidental ingestion gives rise to burns in mouth and GI tract
Chemical Name: 1-Propanesulfonic Acid
Common Name: Propylsulfonic acid
Formula: C3H8SO3
Concentration: 98-100% (technical grade)
Impurities: Sulfates & propanol (trace amounts, depend on supplier and batch)
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, seek medical advice
Skin Contact: Remove contaminated clothing immediately, wash with plenty of soap and water, seek medical attention for burns
Inhalation: Move person into fresh air, provide oxygen if breathing is difficult, seek medical attention without delay
Ingestion: Do not induce vomiting, rinse mouth, drink water if conscious, seek immediate medical assistance
Most Important Symptoms/Effects: Severe pain, redness, blistering, risk of permanent eye injury
Suitable Extinguishing Media: Water spray, dry chemical, CO2, foam
Unsuitable Extinguishing Media: None known for this acid
Special Hazards: Emits toxic and corrosive vapors under fire conditions, sulfur oxides may form
Protective Equipment: Self-contained breathing apparatus, full protective clothing
Firefighting Instructions: Cool containers with water spray, evacuate area and fight fire from a safe distance, avoid inhalation of fumes
Personal Precautions: Evacuate unnecessary personnel, ventilate area, wear recommended PPE
Spill Response: Absorb small spills with inert non-combustible material (e.g., vermiculite, sand), neutralize with sodium bicarbonate, collect spill into containers for disposal
Environmental Precautions: Prevent runoff into drains, surface water, and soil, inform authorities if water pollution risk arises
Cleaning Methods: Thoroughly wash spill area after material pickup, decontaminate equipment and PPE
Precautions for Handling: Use only in well-ventilated locations, avoid contact with eyes, skin and clothing, keep containers tightly closed, do not breathe vapors or mists
Hygiene Measures: Wash hands and forearms after use and before eating, drinking, or smoking
Conditions for Safe Storage: Store in a cool, dry area away from incompatible materials such as oxidizers and strong bases, keep container upright and tightly sealed
Incompatible Materials: Alkalis, strong oxidizers, ammonia, amines, chlorates
Storage Temperature: Ambient, away from direct sunlight and sources of ignition
Occupational Exposure Limits: No established limits for 1-propanesulfonic acid; handle as a corrosive substance
Engineering Controls: Local exhaust ventilation recommended, use chemical fume hood when transferring or mixing
Respiratory Protection: NIOSH or EN-approved acid gas respirator if ventilation is inadequate
Eye Protection: Chemical safety goggles and face shield
Skin Protection: Chemical-resistant gloves (nitrile or neoprene), laboratory coat or apron
Other Protection: Work boots, emergency eyewash and safety shower nearby
Appearance: Clear to yellowish liquid
Odor: Slight sulfurous or pungent
Odor Threshold: Not determined
pH (aqueous solution): Strongly acidic (below pH 1)
Melting Point/Freezing Point: Below 20°C (solidifies slightly above 0°C, depending on concentration)
Boiling Point: Approx. 200°C
Flash Point: Not flammable under standard conditions
Evaporation Rate: Negligible
Flammability: Not classified as flammable
Vapor Pressure: Very low at room temp
Vapor Density: Not available
Relative Density: About 1.26 g/cm³ (liquid at 25°C)
Solubility: Miscible in water
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not self-igniting
Decomposition Temperature: Above 200°C
Viscosity: Moderate (varies with concentration)
Chemical Stability: Stable at ambient temperatures if stored properly
Reactivity: Corrosive to metals, reacts vigorously with strong bases
Hazardous Reactions: Produces heat and fumes with alkalis or oxidizers
Incompatible Materials: Strong oxidizers, reducing agents, bases, ammonia
Hazardous Decomposition Products: Sulfur oxides (SOx), toxic gases in event of thermal decomposition
Polymerization: Not expected under normal storage and handling
Acute Toxicity: LD50 (oral, rat): Estimated >500 mg/kg (corrosive effects limit actual value)
Inhalation: Severe respiratory irritation, coughing and shortness of breath
Skin Contact: Severe burns and irritation, prolonged contact may cause permanent damage
Eye Contact: Rapid, permanent eye injury can result from exposure
Ingestion: Severe irritation or burns to mouth, throat, esophagus and stomach
Carcinogenicity: No classification as carcinogen from IARC, ACGIH or OSHA
Reproductive Toxicity: Not expected based on chemical structure, no available studies
Chronic Effects: Chronic or repeated exposure aggravates conditions such as dermatitis or respiratory sensitivity
Ecotoxicity: Solution strongly acidic, harmful to aquatic organisms due to pH effects
Persistence and Degradability: Readily degrades in environment through microbial action and chemical hydrolysis
Bioaccumulative Potential: Not expected to bioaccumulate, low log Kow
Mobility in Soil: Highly soluble in water, moves readily in soil and water
Other Effects: Spills can acidify water bodies, risk of acute harm to aquatic flora and fauna
Waste Disposal Methods: Containerize and label waste, neutralize if possible under supervision, dispose at licensed hazardous waste facility
Contaminated Packaging: Containers must be triple rinsed or disposed as hazardous waste
Local Regulations: Follow local, regional, and national regulations for corrosive materials
Disposal Precautions: Do not dispose to sewer or the environment, consult waste management specialists
UN Number: UN3265
Proper Shipping Name: Corrosive liquid, acidic, organic, n.o.s. (Contains 1-Propanesulfonic Acid)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: II
Labels Required: Corrosive
Environmental Hazards: No specific marine pollutant classification
Transport in Bulk: Allowed in dedicated tanks, ensure compatibility with vessel materials
Special Precautions: Emergency kit required during transport, ensure upright position of containers
TSCA (US): Listed
REACH (EU): Registered
DSL/NDSL (Canada): Listed
SARA Title III: Not listed as extremely hazardous or toxic
State Regulations: Check for possible local restrictions related to corrosive substances
Chemical Inventory Status: Confirm specific status with local regulatory authority
Other Regulatory Notes: Handle and transport under chemical hygiene plans and lab safety standards
