What is the use of Tetrahydrofuran THF?

CAS 109-99-9 Tetrahydrofuran (THF) is a colorless, volatile cycloaliphatic ether produced by dehydrating 1,4-Butanediol. It is highly polar, miscible with water, and an excellent solvent for various organic substances. Approximately 79% of THF is consumed in the production of polytetramethylene ether glycol (PTMEG), used for manufacturing urethane elastomers, spandex fibers, and copolyester-ether elastomers. The remaining 21% is used as a solvent in PVC cements, coatings, magnetic tape production, and pharmaceutical manufacturing.

 

Tetrahydrofuran has many industry uses as a solvent including in natural and synthetic resins, high polymers, fat oils, rubber, polymer and protective coating, adhesives, inks, tetramethyl lead, PVC and in the production of nylon and adipic acid.

Tetrahydrofuran is also used as a reaction medium, primarily in the pharmaceutical industry, in processes such as Grignard syntheses or lithium aluminium hydride reductions. Grignard synthesis examples include butyrolactone and succinic acid. It is also used as a Grignard reagent in the synthesis of synthetic perfumes, pharmaceuticals, motor fuels and insecticides.

Tetrahydrofuran is a valuable chemical intermediate as it is a precursor to polymers, such as poly (tetramethylene ether) glycol.  The primary use of this polymer is the production of elastomeric polyurethane fibres like Spandex.  It is also an intermediate in the natural gas industry where it is a natural gas odorant.

Other industry uses include in intermediates, processing aids and plasticisers.