© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Chemical Name: 2-Propyn-1-ol
Common Synonyms: Propargyl alcohol
Molecular Formula: C3H4O
CAS Number: 107-19-7
Physical Appearance: Colorless liquid with a sharp, pungent odor that can feel a little biting to the nose
Industry Uses: Often appears as an intermediate in organic synthesis, in corrosion inhibitors, and in the formulation of certain pharmaceuticals and pesticides
Hazard Classes: Flammable liquid, acute toxicity, corrosive to skin and eyes
Warning Signs: The odor is enough to give pause—burns eyes and throat rapidly, and irritation can turn serious at higher exposures
Potential Health Effects: Breathing vapors for only a short time might leave someone dizzy, nauseous, or with a headache; skin contact burns, and eye exposure leads to watering and discomfort that can linger
Combustibility: Catches fire at low temperatures, so keeping it away from heat or sparks becomes common sense in any workspace dealing with it
Main Component: 2-Propyn-1-ol as the dominant ingredient in most settings
Impurities: Trace water, potential minor amounts of similar chain alcohols depending on production route
Concentration: Commercial samples usually boast high purity but the main concern stays with the base compound due to its acute hazards
Inhalation: Move outside or into fresh air if breathing becomes difficult; shortness of breath means immediate medical attention should be sought
Skin Contact: Protective gloves matter because direct skin exposure results in burns; flush for several minutes with running water and remove any contaminated clothing
Eye Contact: Splashing into eyes can be scary—a steady, gentle rinse for at least fifteen minutes, and get to the clinic or emergency room if anyone’s vision seems off
Ingestion: Swallowing even a small mouthful can upset the stomach or more; do not induce vomiting and call poison control or medical services
Flammability: The vapor pulls an ignition source fast, and fumes can travel far enough to find a spark
Extinguishing Media: Alcohol-resistant foam, dry chemical, or carbon dioxide beat water each time for small fires
Risks for Responders: Closed containers heat up and can rupture, sending shrapnel and hot chemicals toward crews
Protective Equipment: Firefighters should wear self-contained breathing apparatus and chemical protective clothing
Containment: Controlling vapors tops the list—turn off sources of ignition before even thinking of cleaning, and ventilate the area to push fumes outdoors
Cleanup: Absorb small spills with sand or suitable commercial absorbent, then shovel into sealed containers for proper disposal
Personal Precautions: Don the right gloves, eye protection, and avoid breathing mist or vapor; large releases mean evacuating unnecessary personnel
Environmental Precautions: Warn colleagues down the drain or into soil—this compound shouldn’t end up in the water supply and needs prompt attention
Handling: Take steps to ground containers and equipment, keep containers closed, and store under efficient ventilation
Storage Conditions: Store in tightly sealed containers out of sunlight and away from oxidizers, acids, and sources of flame or spark
Avoiding Risks: Implementing clear labeling and maintaining adequate space around drums or bottles reduces the risk of accidental bumping or leaks
Personal Protective Equipment: Splash goggles and solvent-resistant gloves must be worn by anyone handling the liquid, and long sleeves keep arms covered
Engineering Controls: Use in a chemical fume hood or a well-exhausted space; local ventilation goes a long way in keeping vapor levels low
Exposure Limits: Regulatory agencies have set limits for airborne concentrations, but in practice, vigilant hygiene, real-time air monitoring, and limiting time spent over open containers make more difference than staring at charts
Boiling Point: Roughly 117 degrees Celsius
Melting Point: Just below 1 degree Celsius
Vapor Pressure: Noticeable, increases with temperature
Solubility: Mixes with water, ethanol, and most common solvents
Density: Sinks just a bit below water
Odor: Pungent, sharp—prolonged exposure can turn an otherwise pleasant laboratory into a challenging place to breathe
Chemical Stability: Holds up well under recommended conditions but begins breaking down around heat, strong acids, or bases
Hazardous Reactions: Reacts vigorously with oxidizers, acids, and alkalies—the gas from these reactions can put both workers and nearby equipment in harm’s way
Dangerous Decomposition Products: Carbon monoxide, carbon dioxide, and various aldehydes when heated or burned
Acute Toxicity: Just a few breaths at high levels might trigger severe lung, kidney, or nervous system effects; skin burns leave lasting marks if not treated properly
Chronic Effects: Long-term exposure, even at low levels, can erode general health, especially for those with breathing problems or sensitive skin
Routes of Exposure: Inhalation and skin contact dominate the workplace risks, although accidental ingestion gets attention due to its low dose toxic threshold
Aquatic Toxicity: Toxic to fish and aquatic invertebrates even at low concentrations; spills into drains or waterways have an outsized impact on local species
Persistence and Degradability: Breaks down in air and water relatively quickly, but the window where it’s active creates meaningful risk if not handled swiftly
Bioaccumulation: Shows limited tendency to pile up in the food chain but can still cause trouble following repeated releases
Waste Disposal: Treat waste as hazardous—do not pour down the drain; incineration in a chemical incinerator with afterburner and scrubber remains best practice across most jurisdictions
Container Disposal: Rinsing and recycling should be avoided unless performed by licensed professionals with the tools for neutralizing residues
Transport Classification: Classifies as a flammable liquid for road, air, and sea shipment
Packaging: Secure drums or bottles with leak-proof seals and strong outer packaging shield from shifting and impact during transit
Special Considerations: Proper hazard labels and securing against tipping win the day for safety
Key Regulations: Subject to local, state, and national controls covering storage, labeling, transportation, and disposal
Occupational Safety: Regular health checks for employees, training for handling emergencies, and documentation of inventory all play crucial roles in meeting regulatory expectations
Environmental Protections: Restrictions on direct discharge, requirements for spill containment gear, and obligations for reporting larger leaks serve both compliance and community safety goals
