Product Name: Linear Alkylbenzene Sulfonic Acid (LABSA)
Chemical Formula: C18H30SO3
Synonyms: Dodecylbenzene Sulfonic Acid, Alkylbenzenesulfonic Acid
CAS Number: 27176-87-0
Recommended Use: Surfactant in detergents, cleaning agents, and emulsifiers
Supplier Details: Check label or invoice for manufacturer contact information, including phone number and address
Emergency Telephone: Refer to local guidelines or label for emergency contact
Hazard Category: Corrosive, Skin/Eye irritant, Environmental hazard
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, harmful if swallowed, very toxic to aquatic life with long lasting effects
Pictograms: Corrosive (GHS05), Exclamation Mark (GHS07), Environment (GHS09)
Precautionary Statements: Wear protective equipment, avoid release to environment, wash thoroughly after handling
Routes of Exposure: Skin, eyes, ingestion, inhalation
Symptoms: Burning sensation on skin, blurred vision, coughing, shortness of breath, abdominal pain
Main Ingredient: Linear Alkylbenzene Sulfonic Acid (85-96%)
Other Ingredients: Sulfuric acid residue, unreacted hydrocarbons, water (balance)
Impurities: Minor, may include unreacted linear alkylbenzene or sulfonation by-products
CAS Number (main): 27176-87-0
Inhalation: Move affected person to fresh air immediately. Loosen tight clothing. Contact doctor if symptoms persist or worsen.
Skin Contact: Remove contaminated clothing, flush skin with water for at least 15 minutes, use mild soap. Get medical attention for redness, blistering, or ongoing irritation.
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, consult a specialist right away.
Ingestion: Rinse mouth with water, do not induce vomiting, offer water to drink but only if person is conscious, seek medical help fast.
Most Important Symptoms: Burns, pain, redness, swelling, blistering, breathing difficulty if inhaled
Suitable Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide; avoid direct water jets
Special Hazards: Fumes of sulfur oxides, carbon oxides, and other toxic vapors
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing
Fire Fighting Instructions: Do not breathe vapors, contain run-off to prevent environmental contamination, ventilate area after extinguishing
Personal Precautions: Use chemical-resistant gloves, eye protection, face shield, respiratory protection as needed
Environmental Precautions: Prevent entry into sewers, waterways, or soil; inform local authorities if large spill occurs
Containment: Absorb small spills with sand, earth, or inert absorbent; collect in sealed containers
Cleanup Procedures: Neutralize with sodium carbonate or lime before disposal, ventilate area well, wash contaminated surfaces
Handling: Avoid breathing mist or vapors, keep containers tightly sealed, use only in well-ventilated areas, always add acid to water to dilute
Storage: Store in original containers made of compatible material (polyethylene, glass fiber reinforced plastic), away from direct sunlight and incompatible chemicals like strong alkalis, store below 30°C, keep away from food and feed
Keep Out of Reach: Ensure only qualified personnel handle and access storage area, use secondary containment where possible
Incompatible Materials: Strong bases, oxidizing agents, metallic powders
Occupational Exposure Limits: Not established for LABSA, follow good industrial hygiene practices
Engineering Controls: Use local exhaust ventilation, mechanical ventilation for confined spaces
Personal Protection: Chemical safety goggles, rubber or nitrile gloves, acid-resistant apron, safety shoes, respiratory equipment for vapor exposure
Hygiene Measures: Wash hands before eating/drinking/smoking, remove contaminated clothing and wash before reuse
Appearance: Light brown to yellow viscous liquid
Odor: Mild, characteristic aromatic smell
pH: <1 (strongly acidic, in solution)
Melting Point: -10°C to -2°C
Boiling Point: Not determined, decomposes before boiling
Flash Point: >100°C (closed cup, estimated)
Solubility: Mixes with water, produces heat and acid
Specific Gravity: 1.05 – 1.10 at 20°C
Vapor Pressure: Low
Viscosity: Thick liquid
Stability: Stable under recommended storage settings
Hazardous Reactions: Reacts vigorously with bases, oxidizing agents, releases heat
Decomposition Products: Toxic fumes of SOx (sulfur oxides), possible carbon oxides
Conditions to Avoid: Extreme heat, exposure to sunlight, contamination with incompatible substances
Polymerization: Does not occur
Routes of Exposure: Skin, eye, ingestion, inhalation
Acute Effects: Burns, severe irritation, nausea, coughing
Chronic Effects: Prolonged exposure leads to dermatitis, respiratory irritation, no major long-term carcinogenic data reported
LD50 (Oral, rat): 1080 mg/kg (approximate)
Sensitization: Not reported
Additional Data: May aggravate pre-existing skin and respiratory conditions
Aquatic Toxicity: Highly toxic to fish, aquatic invertebrates, even low concentrations can disrupt local ecosystems
Persistence: Degrades slowly in environment, shows moderate potential for bioaccumulation in aquatic organisms
Mobility: Moves readily through soil and water
Precautions: Prevent release into waterways, follow strict containment during storage and use
Disposal Methods: Dispose by incineration under controlled conditions or at approved hazardous waste facility
Contaminated Packaging: Empty containers must be triple rinsed and then sent for proper disposal, never reused for other purposes
Precautions: Do not flush into sewers or streams, observe local and national regulations regarding chemical disposal
UN Number: 2586
Proper Shipping Name: Alkylbenzenesulfonic Acid, Liquid
Transport Hazard Class: 8 (Corrosive Substances)
Packing Group: III
Labels Required: Corrosive symbol
Environmental Hazards: Marine pollutant, special rules apply for water transport
Special Precautions: Keep separate from food, feed, and incompatible goods, handle with approved PPE during loading and unloading
Labeling: Complies with GHS, OSHA, EU CLP regulations
SARA 311/312: Immediate (acute) health hazard
TSCA: Listed
REACH: Registered as hazardous substance in EU
Other Regulations: Follow local, national, and international laws regarding use, handling, and disposal
Worker Training: Staff must receive regular training on chemical risks and safe practices for handling corrosives
