Product Name: 1-Butanesulfonic Acid
Chemical Formula: C4H10O3S
Synonyms: n-Butanesulfonic acid
CAS Number: 1633-83-6
Recommended Use: Intermediate in chemical synthesis, ion-pairing reagent, laboratory reagent
Manufacturer/Supplier: Contact information from purchasing documentation
Emergency Phone: Contact Poison Control or Local Emergency Number for immediate hazards
GHS Classification: Skin corrosion/irritation (Category 2), Serious eye damage/eye irritation (Category 2A)
Label Elements: Pictograms: Exclamation Mark, Signal Word: Warning
Primary Health Hazards: May cause skin and eye irritation; can irritate the respiratory tract after inhalation
Hazard Statements: Causes skin irritation, serious eye irritation
Precautionary Statements: Wear protective gloves, avoid contact with eyes, skin, and clothing; wash thoroughly after handling; remove contaminated clothing; seek medical attention if symptoms persist
Chemical Name: 1-Butanesulfonic Acid
Chemical Family: Organic sulfonic acids
Concentration: Greater than 98% (may vary with supplier specification)
Impurities: Water (<1.5%), organic byproducts (trace, supplier dependent)
CAS Number: 1633-83-6
EC Number: 216-648-2
General Advice: Move affected persons to fresh air, remove contaminated clothing, and prevent further exposure by following decontamination procedures; offer medical attention without delay if symptoms persist
Eye Contact: Rinse cautiously with water for multiple minutes, remove contact lenses, keep eyelids open and flush, seek immediate medical help for persistent irritation
Skin Contact: Wash thoroughly with plenty of water while removing contaminated clothing and footwear, seek medical attention for persistent redness, blistering, or irritation
Inhalation: Move to fresh air, keep at rest in a position comfortable for breathing, seek medical attention for coughing or breathing difficulty
Ingestion: Rinse mouth, do not induce vomiting, drink water (if conscious and not at risk for aspiration), obtain medical attention promptly
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, and carbon dioxide
Unsuitable Extinguishing Media: Direct water jet
Specific Hazards: Decomposes under heat to release sulfur oxides and other irritant fumes
Special Protective Equipment: Wear self-contained breathing apparatus and full protective gear
Firefighting Procedures: Use water spray to cool containers, contain runoff to avoid environmental contamination, evacuate area in case of heavy smoke or chemical release
Personal Precautions: Use personal protective equipment, avoid breathing fumes, vapors, or mist, ensure adequate ventilation
Environmental Precautions: Avoid release into drains, surface water, or soil, contain spill with inert absorbent materials
Clean-up Methods: Scoop or soak up with inert material (sand, earth, or universal binder), collect for disposal in properly labeled containers, ventilate affected area, wash spill site after material pickup
Emergency Procedures: Evacuate unnecessary personnel, isolate area, follow local emergency plans; contact authorities if large quantities are released
Handling: Operate in well-ventilated areas, avoid inhalation and skin contact, use personal protective equipment, do not eat, drink, or smoke when handling
Storage Conditions: Store in tightly sealed original container, keep in cool, dry, well-ventilated place away from incompatible materials (strong bases, oxidizing agents)
Incompatibilities: Avoid strong oxidizers, strong bases, and moisture
Other Precautions: Clearly label storage areas, limit access to trained personnel, store away from food and animal feed
Occupational Exposure Limits: No established limits for 1-Butanesulfonic Acid under OSHA, ACGIH, or NIOSH
Engineering Controls: Use fume hood or local exhaust ventilation for laboratory work, install spill containment for bulk storage
Personal Protective Equipment: Safety goggles, chemical-resistant gloves (nitrile or neoprene recommended), lab coat or coveralls, closed footwear
Respiratory Protection: Use NIOSH-approved respirator if ventilation is inadequate or dust inhalation risk exists
Hygiene Measures: Wash hands and face thoroughly before breaks and after handling; avoid cross-contamination with other chemicals
Appearance: White to slightly yellowish solid (may be crystalline or powder, depending on purity)
Odor: Characteristic, slightly sulfurous
Melting Point: 99–105°C
Boiling Point: Decomposes before boiling
Solubility: Miscible with water; soluble in methanol and other polar organic solvents
pH: Strongly acidic aqueous solutions
Density: 1.23–1.25 g/cm³
Vapor Pressure: Non-volatile at ambient temperature
Flash Point: Not flammable under normal conditions
Chemical Stability: Stable under recommended handling and storage conditions
Reactivity: Reacts with strong bases to form corresponding salts
Conditions to Avoid: Moisture, high temperatures, and direct sunlight
Incompatible Materials: Strong oxidizers, strong alkalis, and reducing agents
Hazardous Decomposition: Sulfur dioxide, oxides of carbon, other toxic gases may form during combustion or when heated above decomposition temperature
Polymerization: Not expected under normal conditions
Acute Toxicity: No data on human LD50; animal studies point to low acute toxicity, yet corrosive potential causes concern for direct exposure
Inhalation: Inhalation may cause irritation to mucous membranes, coughing, or throat discomfort
Skin Contact: Redness, itching, and risk of burns possible after prolonged exposure
Eye Contact: Causes irritation, possible eye damage if not washed out promptly
Ingestion: May irritate gastrointestinal tract; burning sensation, abdominal pain, nausea, and vomiting may follow
Chronic Effects: Repeated exposure may cause dermatitis, respiratory sensitivity; no known carcinogenic, mutagenic, or reproductive risks reported in common literature
Ecotoxicity: Not classified as highly toxic to aquatic life, but acidification and organic sulfur load can disrupt local water chemistry
Persistence and Degradability: May degrade in water through microbial activity, yet breakdown products can remain in soil or sediment
Mobility: High water solubility leads to rapid dispersal in surface or ground water
Bioaccumulation: Not likely to bioaccumulate due to hydrophilic nature
Other Environmental Impact: Improper disposal or spills risk acidification of local environments, do not release into natural waterways or soil layers
Waste Disposal Methods: Dispose in accordance with local, regional, and national regulations; must not discharge undiluted material into drains or water courses
Container Disposal: Triple rinse and dispose via licensed chemical waste contractor; puncture and render unusable packaging that cannot be cleaned
Special Precautions: Do not attempt neutralization in uncontrolled settings; wear protective gear and follow facility protocol for hazardous waste
UN Number: Consult shipping authority due to variation by country, commonly not assigned for small laboratory amounts
Proper Shipping Name: Butanesulfonic acid or organic acid, solid, n.o.s.
Hazard Class: Classified as corrosive for bulk transport or in higher concentrations
Packing Group: III (mildly corrosive category, as applicable)
Transport Label: Corrosive
Special Transport Precautions: Protect containers against physical damage, keep upright, segregate from incompatible loads; report accidents to appropriate authorities
Federal Regulations (United States): Not listed as a controlled or restricted chemical under TSCA, SARA, CERCLA
State Regulations (California Proposition 65): Not listed as a carcinogen or reproductive toxin
EU Regulations (REACH, CLP): Complies with registration and labeling requirements; not listed as a Substances of Very High Concern
Other International Regulations: WHMIS (Canada): D2B, skin and eye irritant; always refer to local country guidelines for workplace storage and handling
Workplace Information: Safety data sheet to be supplied to anyone who uses, handles, or transports this substance; ensure appropriate signage and hazard communication as required by regulatory bodies
