Propargyl alcohol

Propargyl alcohol (CAS 107-19-7), also known as 2-Propyn-1-ol, 1-Propyn-3-ol, and ethynylcarbinol, is a short-chain acetylenic alcohol carrying a terminal alkyne group. It carries no assigned E-code and is not classified as a food-grade additive. It is handled strictly as an industrial chemical.

In oil and gas operations, propargyl alcohol functions as an acid corrosion inhibitor by adsorbing onto metal surfaces through its triple bond, forming a protective film that slows dissolution during acidic pickling and well-stimulation treatments. In polymer chemistry, the reactive alkyne group serves as an initiation site or cross-linking node in the synthesis of polyynes and specialty resins.

Propargyl alcohol is available in technical and high-purity grades, typically supplied in drums or IBC containers. It falls under REACH registration requirements within the EU, and suppliers should provide a current Safety Data Sheet confirming compliance. Buyers should confirm grade specification against their application requirements before ordering.