Product Name: Ácido Sulfónico (Linear Alkyl Benzene Sulfonic Acid)
Chemical Family: Alkylaryl sulfonic acid
CAS Number: 27176-87-0
Synonyms: LABSA, Dodecylbenzene Sulfonic Acid
Use: Surfactant in detergents, cleaning products, emulsifiers
Manufacturer/Supplier: Industrial chemical companies
Emergency Contact: Local poison control or national emergency numbers
Recommended Use Restrictions: Intended for industrial and professional use, not for consumption
UN Number: 2586
Emergency Overview: Corrosive, can cause severe irritation to skin, eyes, and mucous membranes, harmful if inhaled or ingested
Hazard Class: Corrosive to skin and eyes
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, may cause respiratory irritation
Precautionary Statements: Avoid contact with eyes, skin, and clothing; do not breathe vapors, mist, or spray; wash hands thoroughly after handling; wear protective gloves, eye and face protection
GHS Pictograms: Corrosive, Exclamation Mark
Potential Health Effects: Eye contact leads to pain, redness, possible permanent injury; skin contact causes burns; inhalation gives rise to respiratory tract irritation; ingestion may damage gastrointestinal tract
Environmental Hazards: Harmful to aquatic life with long-lasting effects
Chemical Name: Linear Alkyl Benzene Sulfonic Acid
Concentration: 88–96% by weight
CAS Number: 27176-87-0
Impurities: Sulfuric acid, water content may be present in trace amounts
Other Ingredients: None present above threshold
Molecular Formula: C18H30SO3
Molecular Weight: Approximately 326–340 g/mol depending on alkyl chain length
Relevant Exposure Limits: No established OSHA PEL, ACGIH TLV or NIOSH REL for the acid specifically, but treat as strongly irritating compound
Eye Contact: Rinse immediately with plenty of clean water, hold eyelids open, seek medical attention promptly
Skin Contact: Remove contaminated clothing, wash exposed area with soap and plenty of water, medical attention if irritation develops
Inhalation: Remove person to fresh air, keep at rest, help breathing if needed, call poison control or seek urgent medical care
Ingestion: Rinse mouth, do not induce vomiting, give water if conscious, medical attention as soon as possible
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray (do not use strong stream)
Unsuitable Extinguishing Media: Do not use direct water jet which may spread product
Specific Hazards: Decomposes under fire conditions, producing SOx gases, may react with metals
Protective Equipment for Firefighters: Full protective suit and self-contained breathing apparatus
Special Procedures: Cool nearby containers, clear non-emergency personnel from area, avoid inhalation of fumes
Personal Precautions: Wear chemical-resistant gloves, goggles, face shield, boots, impervious clothing
Environmental Precautions: Prevent runoff to waterways, contain spill, report as necessary under local regulations
Cleanup Methods: Absorb on inert material such as dry sand, clay, or earth, collect into suitable containers, neutralize with lime or soda ash if appropriate, ventilate area, wash spill site after material pick-up complete
Emergency Procedures: Restrict access, ventilate space, dispose of contaminated material as hazardous waste
Handling: Use only in well-ventilated areas, avoid splashing or aerosol formation, always wear recommended PPE, do not mix with incompatible chemicals (alkalis, oxidizers, strong bases)
Storage: Keep container tightly closed, store in cool, dry, well-ventilated place, protect from sunlight, store away from food and drink, segregate from reactive agents, label area clearly
Storage Temperature: Keep below 35°C for safe storage and transport
Control Parameters: No established occupational exposure limits; minimize exposure
Engineering Controls: Local exhaust ventilation, closed systems if possible
Personal Protective Equipment: Chemical splash goggles or face shield, acid-resistant gloves, long sleeves, chemical apron, rubber boots, if needed, use NIOSH-approved respirator for concentrated vapors or mist
Hygiene Measures: Wash hands and face thoroughly after handling, remove contaminated clothing and laundering before reuse, keep eating, drinking, and smoking out of work area
Appearance: Brown to dark amber, viscous liquid
Odor: Characteristic aromatic or petroleum-like
Odor Threshold: Not established
pH: Less than 1 (strongly acidic, 1% solution)
Melting Point/Freezing Point: -10°C to -2°C
Boiling Point: Decomposes before boiling
Flash Point: Greater than 93°C (non-flammable in typical industrial settings)
Evaporation Rate: Not volatile
Flammability: Non-flammable under normal conditions
Vapor Pressure: Negligible at 20°C
Solubility: Miscible in water, forms acidic solution
Partition Coefficient: Not applicable
Decomposition Temperature: Above 200°C
Viscosity: High, syrup-like
Chemical Stability: Stable under standard conditions of handling and storage
Conditions to Avoid: Humidity, extreme heat, exposure to incompatible substances
Incompatible Materials: Reactive with bases, oxidizing agents, reducing agents, strong alkalis
Hazardous Decomposition Products: May produce SOx, benzene compounds at high temperature or contact with strong oxidizers
Hazardous Reactions: Vigorous exothermic reaction with alkalis, violent with some metals, forms flammable hydrogen gas
Routes of Exposure: Eyes, skin contact, inhalation, ingestion
Acute Toxicity: Oral LD50 (rat) 500–2000 mg/kg, considered harmful if swallowed
Skin Corrosivity: Causes burns with prolonged/short exposure
Eye Damage/Irritation: Causes severe irritation, risk of permanent damage
Respiratory Sensitization: May cause coughing, respiratory tract soreness in presence of mist or vapor
Chronic Effects: No significant evidence of carcinogenicity, mutagenicity or reproductive toxicity in standard lab animal studies, but repeated contact increases risk of skin and eye damage; can worsen respiratory conditions
Symptoms: Burning sensations, pain, redness, blisters, inflammation, possible vision loss
Ecotoxicity: Harmful to aquatic organisms, fish, and invertebrates, risk of long-term harm to aquatic environments
Persistence and Degradability: Moderately persistent but ultimately biodegradable under aerobic conditions
Bioaccumulative Potential: Low, breaks down by microbial action, does not concentrate in tissues
Mobility in Soil: Highly mobile, dissolves in water and may move to groundwater if spilled
Other Adverse Effects: Water solution acidifies streams and lakes, leading to fish kills and damage to plant life; avoid release to natural water bodies
Waste Treatment Methods: Dispose as hazardous waste in accordance with local, regional, and national regulations
Methods of Disposal: Neutralize cautiously with lime or soda ash before disposal if permitted; collect in properly labeled containers
Disposal of Packaging: Triple rinse, puncture, and send to permitted hazardous waste landfill or incinerator
Special Precautions: Avoid direct discharge to sewer or environment, consult local environmental authority for proper disposal guidance
UN Number: 2586
UN Proper Shipping Name: Alkylsulfonic acids, liquid
Transport Hazard Class: 8 (Corrosive)
Packing Group: II
Labels: Corrosive label required on containers and vehicles
Special Transport Notes: Use corrosion-resistant containers, keep upright, avoid extreme temperature fluctuations, follow national and international transport codes
TSCA (USA): Listed
REACH (EU): Registered with appropriate authorities
WHMIS (Canada): D1B (Toxic), E (Corrosive)
OSHA Hazard: Corrosive, hazardous chemical
SARA Title III Sections 311/312: Immediate (acute) health hazard
Other Regulations: Complies with most international chemical safety regulations, may be subject to additional restrictions depending on country, local or provincial rules
Safety Assessment: Product must carry proper hazard communication, labeling, and be used by trained personnel only
