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The Highly Toxic Chemical Propargyl Alcohol
Alias: propargyl alcohol, 2-propyn-1-ol, 2-propynyl alcohol, propargyl alcohol ethynyl methanol.
Toxicological data
Acute toxicity: Rat oral LD50: 70mg/kg;Rabbit percutaneous LD50: 16mg/kg;
Rat inhalation LD50: 2000mg/m3/2H.
Ecological data
Toxic to aquatic organisms. Can cause unfavourable results in the aquatic environment.Toxic. Severe skin and eye irritation.
Properties and Stability
Avoid heat. Avoid contact with strong oxidising agents, strong acids, strong bases, acyl chlorides, acid anhydrides.Toxic. Serious irritation to skin and eyes, wear protective glasses and gloves during operation.
Storage Methods
Store in a cool, ventilated warehouse. Keep away from fire and heat source. The storage temperature should not exceed 30℃. Keep the container sealed. It should be stored separately from oxidising agents, acids, alkalis and edible chemicals, and should not be mixed. It is not suitable for mass storage or long storage. Use explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are easy to generate sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable shelter materials. Strictly implement the "five-double" management system for extremely toxic substances.Due to the low flash point of propargyl alcohol, and in the presence of impurities can occur intense reaction, should pay special attention to safety. For short-term storage and transport, clean and rust-free steel containers can be used. For long term storage, stainless steel, glass or phenolic resin lined containers are preferred and materials such as aluminium should be avoided. Store and transport according to the regulations for flammable chemicals.
Use
Used as rust remover, chemical intermediate, corrosion inhibitor, solvent and stabiliser. Organic synthesis intermediates, solvents, stabilisers for chlorinated hydrocarbons.Can be used as corrosion inhibitor for hydrochloric acid and other industrial pickling in oil and gas well acidification and fracturing process. It can be used as corrosion inhibitor alone, and it is better to be compounded with substances that produce synergistic effect to obtain higher corrosion inhibition efficiency. For example, in order to increase the corrosion inhibition of acetylenic alcohol in dilute sulfuric acid solution, often add sodium chloride, potassium chloride, calcium chloride, potassium bromide, potassium iodide, or zinc chloride and other compound use.
It can be used alone as a corrosion inhibitor, and it is preferable to combine it with substances that produce synergistic effects in order to obtain higher corrosion inhibition efficiency. For example, in order to increase the corrosion inhibition effect of acetylenic alcohol in dilute sulphuric acid solution, it is recommended to add sodium chloride, potassium chloride, calcium chloride, potassium bromide, potassium iodide or zinc chloride.
Emergency Response Disposal Methods
Emergency Response to Spills
Cut off source of ignition. Wear self-contained breathing apparatus and general fire protection clothing. Plug leaks while ensuring safety. Spray water mist to reduce evaporation. Absorb with a mixture of sand or other non-combustible adsorbents. Then transport to an open area to bury, evaporate, or burn. If large quantities are spilled, use a berm to contain the spill, then collect, transfer, recycle, or dispose of in an environmentally sound manner.Protective measures
Respiratory protection: Wear a gas mask when airborne concentrations are high. Self-contained breathing apparatus (SCBA) is recommended for emergency rescue or evacuation.Eye protection: Wear chemical safety glasses.
Body protection: Wear anti-static work clothes.
Hand protection: Wear protective gloves.
Others: Smoking is strictly prohibited at the work site. Avoid prolonged and repeated contact.
First aid measures
Skin contact: Remove contaminated clothing and rinse thoroughly with soap and water.EYE CONTACT: Immediately open upper and lower eyelids and flush with running water for 15 minutes. Seek medical attention.
INHALATION: Remove from scene to fresh air. Give oxygen if breathing is difficult. In case of respiratory arrest, give artificial respiration immediately. Seek medical attention.
Ingestion: If ingested, rinse mouth with water, drink plenty of warm water, induce vomiting and seek medical attention immediately.
