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Chemical Name: Furfural, also known as 2-Furaldehyde.
Chemical Formula: C5H4O2.
Synonyms: Furaldehyde, 2-Furanaldehyde, Furfurol.
Appearance: Oily, colorless to amber liquid.
Odor: Almond-like, aromatic.
Common Uses: Solvent, intermediate for making chemicals like furfuryl alcohol and resins, part of agricultural, foundry, and adhesive industries.
Boiling Point: Around 161°C.
CAS Number: 98-01-1.
People might notice: Strong smell in places with poor ventilation or near bulk storage.
Acute Hazards: Irritation to eyes, skin, respiratory system; headaches, drowsiness, possible dizziness; skin absorption may lead to systemic effects.
Chronic Hazards: Repeated exposure may impact liver and kidneys; allergic skin reactions reported; some studies show potential mutagenicity.
Fire/Explosion Risk: Flammable liquid; vapors heavier than air can travel and ignite; hazardous decomposition products under fire conditions.
Environmental Risk: Harmful to aquatic life; persistent in soil and water environments; known to inhibit some microbial activity.
Signal Words & Pictograms: “Danger” under GHS; exclamation mark, health hazard, and environment symbols often seen on warning labels.
Main Component: Furfural, >99%.
Impurities: Trace amounts of formic acid, water, furfuryl alcohol depending on production process; not generally present at hazardous levels.
No common additives: Usually handled in pure form, so risk comes from furfural itself, not a blend.
Inhalation: Bring person to fresh air; medical attention needed for persistent headaches, coughing, or tightness of chest.
Skin Contact: Remove contaminated clothing, rinse area with water—soap helps; medical care if irritation lasts n or rash forms.
Eye Contact: Rinse eyes repeatedly with plenty of water for at least 15 minutes; urgent trip to a doctor for pain or visual changes.
Ingestion: Don’t induce vomiting; rinse mouth, watch for stomach distress or drowsiness, get to medical professional right away.
Personal Experience: Anyone who has spilled furfural on themselves knows the burning starts fast, so quick action and thorough rinsing matter most.
Suitable Extinguishing Media: Carbon dioxide, dry chemical, alcohol-resistant foam; water spray works for cooling but direct streams spread liquid.
Hazards During Fire: Vapors form explosive mixtures with air, spreading far from source; combustion may produce carbon monoxide and carbon dioxide.
Protective Gear: Full protective suit with self-contained breathing apparatus; staying upwind is smart in case of toxic fumes.
Unusual Insights: People rarely expect furfural fires to flash so quickly—anyone nearby should avoid the temptation to use water without thinking.
Personal Precautions: Evacuate area, ventilate affected space; gloves, goggles, protective clothing keep exposure minimal.
Environmental Actions: Prevent from reaching drains or watercourses; dike and contain spill, absorb with sand, earth, or inert material.
Clean-Up: Collect spilled liquid for disposal in sealed containers; thoroughly clean contaminated area.
People’s Reality: On cleanup crews, the fast, overpowering smell leaves no doubt that getting fresh air and taking spill control seriously pays off.
Safe Handling: Work in well-ventilated spaces or use fume hoods; keep away from open flames and hot surfaces; avoid contact with skin and eyes.
Storage Needs: Keep tightly closed in containers made of compatible material, like stainless steel; store in cool, dry, well-ventilated area, away from oxidizers and acids.
People's Practices: Warehouses that keep furfural find that regular inspection of containers and strict separation from other chemicals prevent most mishaps.
Workplace Exposure Limits: Many places recommend limits between 2–5 ppm, 8-hour time-weighted average.
Engineering Controls: Local exhaust ventilation stands out as most effective, especially in manufacturing or lab settings.
Personal Protective Equipment: Chemical-resistant gloves like nitrile, splash-resistant goggles, and lab coats standard; for larger volumes, face shield and full suit sometimes required.
Air Monitoring: Regular checks make sure limits aren’t breached, especially during bulk handling.
Worker Perspective: Anyone who skips gloves or goggles usually regrets it—furfural sneaks through small cuts or splashes, causing trouble.
State: Liquid at room temperature.
Color: Colorless when pure, commonly takes on yellow to brown tints over time due to light or air exposure.
Odor: Strong, bitter almond scent—hard to mistake once learned.
Density: About 1.16 g/cm³.
Solubility: Mixes easily with alcohol and ether, sparingly soluble in water.
Vapor Pressure: Moderate at room temperature, so fumes build up in closed spaces unless ventilated.
Other: Doesn’t mix well with strong alkalis or oxidizers—reaction risks go up fast in the wrong mix.
Chemical Stability: Keeps its form under cool, dry, stable conditions.
Reactivity: Reactive with strong acids, bases, and oxidizing agents—risk of heat and hazardous gases.
Hazardous Decomposition: Burns to carbon monoxide, carbon dioxide, and sometimes small traces of other organics.
Incompatibility: Stores badly next to nitric acid, chlorine, or peroxides.
People’s Caution: Mixing furfural with bleach or leaving residue in open air often leads to sticky, smelly polymer mess—old-timers never trust open containers.
Acute Exposure Effects: Causes irritation and might lower consciousness in poorly ventilated areas.
Chronic Exposure Effects: Linked with liver and kidney problems; repeated contact causes dermatitis.
Sensitization: Documented allergic skin response in some workers.
Mutagenicity: Animal tests hint at potential genetic effects, but no solid proof of long-term cancer risk in humans.
Absorption Notes: Passes through skin, so protective gear matters.
Personal Highlight: Discussion groups for those working with furfural often mention unpleasant headaches—even with brief exposure, so folks quickly learn ventilation is not optional.
Aquatic Toxicity: Toxic to fish and invertebrates at low concentrations; not readily biodegradable, so breaks down slowly.
Soil Impact: May persist and leach, especially after large spills.
Bioaccumulation: Tends not to build up in organisms, but short-term harm can be severe.
Real-World Observations: Towns downstream from furfural plants sometimes complain of sharp, lasting odors in water; emergency teams test for contamination after major leaks.
Preferred Disposal: Incinerate in approved facilities; avoid dumping to water or untreated landfill.
Contaminated Packaging: Triple-rinse or incinerate; avoid recycling drums for food use.
Community Notes: Most facilities collect spent furfural separately, since even tiny amounts in public wastewater bring costly fines and cleanup orders.
UN Number: 1199.
Hazard Labels: Flammable liquid; environmental hazard markers required in some regions.
Shipping Practices: Steel drums or tank cars, sealed tightly; no transport with food or reactives.
Practical Advice: Truckers moving furfural know to avoid rough roads—jolts or temps above 40°C sometimes set off leaks or venting, and quick reporting proves critical.
Classification: Flammable, toxic, environmentally hazardous under major global chemical laws.
Workplace Rules: OSHA, ACGIH, and EU set exposure limits; most companies require hazard communication training for handlers.
Community Protections: Many places insist on secondary containment and air monitoring at bulk storage.
Worker Reality: Safety committees treat furfural as a test of readiness; drills, inspections, and monitoring gear roll out wherever the chemical gets used.
