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Trade Name: Butyl Salicylate
Chemical Formula: C11H14O3
CAS Number: 2051-49-2
Common Uses: This compound often shows up in the world of fragrances and cosmetics, with a reputation for blending scents and masking unwanted odors. Many industrial users integrate it into cleaning agents and as a mild flavoring element. The stuff isn’t rare—you spot it in labs and manufacturing facilities alike. It usually comes as a clear liquid, which doesn’t draw much visual attention but certainly matters whenever chemical handling enters the conversation.
Hazard Classification: Irritant to eyes and skin, with potential for respiratory discomfort if vapors build up in enclosed spaces.
Key Risks: Eye and skin irritation pop up as common complaints. Prolonged exposure might start to cause headaches and dizziness. Large spills mean accidental contact rises and so does inhalation risk. This liquid isn’t explosive but can fuel a fire when mixed with compatible materials.
Safety Symbols: Skin and respiratory hazard icons often mark chemical containers, reminding handlers to pay attention.
Main Ingredient: n-Butyl Salicylate, usually found in concentrations above 97%. Any impurities tend to linger at trace levels, not enough to create an extra risk category, but worth being aware of from a quality perspective. No added stabilizers or inhibitors in most batches, so the bulk is just pure butyl salicylate.
Eye Contact: Flush eyes with water for at least fifteen minutes. Make sure eyelids are pulled back so water rinses every area.
Skin Contact: Wash skin right away with soap and water. Remove contaminated clothing.
Inhalation: Move the person out to fresh air; if breathing feels irregular, medical help makes sense.
Ingestion: Rinse mouth with water; avoid inducing vomiting. Hospitals sometimes provide the safest outcome after accidental swallowing.
Suitable Extinguishing Agents: Dry chemical, alcohol-resistant foam, and carbon dioxide work best. Water spray is an option in some cases but often just spreads smaller spills.
Hazardous Combustion Products: Burning can create toxic fumes like carbon monoxide and carbon dioxide. Smoke may carry some asphyxiation risk.
Protective Equipment: Firefighters gear up with self-contained breathing apparatus and chemical-resistant suits to keep harmful fumes away from their lungs and skin.
Personal Precautions: Gloves and eye shields cut down risk during cleanup. Good ventilation also matters, especially inside.
Spill Containment: Absorb small spills with sand or inert materials, then collect waste for safe disposal. Wipe surfaces well since residue can irritate skin.
Environmental Caution: Prevent much of the chemical from entering drains or waterways. Environmental regulations land hard if a spill gets away from you.
Safe Handling: Wear protection for skin and eyes every time. Local exhaust ventilation dodges vapor accumulation. Keep containers tightly sealed when not in use; empty drums or bottles can still be hazardous.
Storage Guidelines: Store in cool, dry, and well-ventilated places. Direct sunlight and high heat call for extra caution; sealed drums should stand upright and away from sources of ignition.
Segregation: Keep butyl salicylate away from oxidizers and acids, as these combinations raise the possibility of dangerous reactions.
Engineering Controls: Local exhaust fans or fume hoods draw vapors away in lab and factory settings.
Personal Protection: Chemical goggles, gloves rated for organic solvents, and lab coats all matter here. Respiratory protection comes into play if ventilation slips below acceptable levels.
Exposure Limits: Government agencies haven’t published any formal limits for butyl salicylate so far, which leaves companies relying on general control measures and best practices.
Appearance: Clear, colorless liquid, slightly oily by feel.
Odor: Mild, sweet, and aromatic—easy to pick out in a mixture.
Boiling Point: Approximately 290°C
Melting Point: Below room temperature, so it stays liquid in normal conditions.
Vapor Pressure: Low—less likely to become airborne quickly.
Solubility: Not particularly soluble in water, but mixes well with common organic solvents.
Flash Point: Around 130°C, calling for respect when working close to heat sources.
Chemical Stability: Under standard storage conditions, butyl salicylate remains stable.
Conditions to Avoid: Excess heat, open flames, and strong oxidizers start to shift the profile toward risk.
Hazardous Reactions: Interacts with strong acids or bases. Uncontrolled heat can prompt decomposition that generates gases.
Acute Effects: Ingesting significant amounts brings nausea and upset digestion. Skin and eye exposure often means stinging and redness. Inhalation can lead to mild respiratory irritation.
Chronic Exposure: No strong evidence connects butyl salicylate to major long-term toxicity in workplace settings so far. Studies remain limited, keeping a degree of uncertainty alive.
Sensitization: Most people don’t develop allergies, though a few isolated cases of skin sensitization pop up in frequent users.
Aquatic Toxicity: Harmful for fish and invertebrates in moderate to high concentrations.
Persistence: Tends not to break down rapidly in natural waters, which underscores a real need for careful waste management.
Mobility: Given its solubility profile, a spill may not travel far in soil, but can migrate into waterways near the surface.
Bioaccumulation: Current research doesn’t show major buildup in the food chain, yet no one can say for sure given ongoing gaps in field data.
Waste Treatment: Only hand over disposal to professional chemical waste managers, as they work with local regulations in mind.
Container Handling: Empty containers keep a chemical residue that calls for proper cleaning or recycling at specialized facilities. Never toss them in regular trash.
Incineration Advice: Incinerate in approved facilities that manage combustion gases, keeping emissions and ash below regulatory limits.
UN Classification: Most batches for shipment do not carry major flammable or toxic designations.
Packing Instructions: Containers must seal tightly and travel upright. Avoid loading near foodstuffs or inconsistent temperature zones. Labels need to signal the chemical nature of the contents clearly to handlers. Transporters rely on accurate documentation and care during movement.
Regulatory Status: Listed on many chemical inventories, including North America and Europe.
Workplace Standards: No specific national exposure limits or occupational guidelines. Facilities must rely on general workplace safety laws and hazard communication.
Environmental Laws: Drainage into public water sources faces tight rules. Waste management and spill response procedures fall under national hazardous waste regulations.
Labeling Obligations: Containers call for hazard pictograms and standardized information, especially in manufacturing and distribution chains.
