Industrial application of Tetrahydrofuran THF CAS 109-99-9

1. Tetrahydrofuran CAS 109-99-9  is an important organic synthetic raw material and a solvent with excellent performance. It is especially suitable for dissolving PVC, polyvinylidene chloride and butyl aniline. It is widely used as a solvent for surface coatings, anticorrosive coatings, printing inks, tape and film coatings, and used together As a reaction solvent, the thickness and brightness of the aluminum layer can be arbitrarily controlled when used in the aluminum electroplating solution. Tetrahydrofuran itself can be polycondensed (ring-opening and re-polymerization initiated by cations) into polytetramethylene ether glycol (PTMEG), also known as tetrahydrofuran homopolyether. PTMEG and toluene diisocyanate (TDI) are used to make special rubber with wear resistance, oil resistance, good low temperature performance and high strength; and dimethyl terephthalate and 1,4-butanediol to make block polyether polyester elastic material. PTMEG with a relative molecular mass of 2000 and p-methylene bis-(4-phenyl) diisocyanate (MDI) are used as raw materials for polyurethane elastic fiber (spandex, SPANDEX fiber), special rubber and some special-purpose coatings. In organic synthesis, it is used to produce tetrahydrothiophene, 1,2-dichloroethane, 2,3-dichlorotetrahydrofuran, valerolactone, butyrolactone and pyrrolidone, etc. In the pharmaceutical industry, THF is used to synthesize kebiqing, rifamycin, progesterone and some hormone drugs. THF is treated with hydrogen sulfide to generate tetrahydrothiophenol, which can be used as an odorant (identification additive) in fuel gas. THF can also be used as a surface treatment agent for synthetic leather.

2. Used as a solvent and raw material for organic synthesis. [1] 

3. Used as chromatographic analysis reagent, organic solvent and nylon 66 intermediate. Tetrahydrofuran, also known as oxolane, oxolane, and tetramethylene oxide, is an intermediate for the synthesis of pesticide phenbutyltin. In addition, it can be directly used to make synthetic fibers, synthetic resins, and synthetic rubbers, as well as many polymer materials. , Precision magnetic tape and electroplating industry solvent, also used in the production of adiponitrile, adipic acid, hexamethylene diamine, succinic acid, butanediol, γ-butyrolactone, etc., in the pharmaceutical industry, can be used to produce Kebiqing, Progesterone, rifamycin and used as a pharmaceutical solvent, etc.

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Tetrahydrofuran THF is known as universal solvent because it has strong solvency. It is good solvent to polyethylene, polypropylene and fluorine resin, and other organic compounds, especially polyvinyl chloride, polyvinylidene chloride etc. It is colorless and transparent volatile liquid, similar to the smell of ether. Soluble in water, ethanol, ethyl ether, acetone, benzene, most organic solvents. Combustible. In the air can generate explosive peroxide.

Specification
   Purity                    99.90%min.
   Moisture                0.01%max.
   Color (APHA)         10max

Application
· Resin solvent (Layered coating for tape, PVC surface coating, cleansing PVC reactor, ink for plastic printing, thermoplastic polyuretha-ne coating)
· Reactive solvent (hydrogen aluminum, and boron, steroid compound and macromolecule organic polymer, etc)
· Chemical medial agent (Polymerized substances of PTMEG etc. )
· Chromatographic solvent (Using the method of gelatins filtering chrom-atogram) 

Packing
180kg/iron drum 
80 drums/20"FCL

Storage

THF shall be kept well closed in a cool, dry and ventilated place. Avoid flame, heat and static. Keep away from oxidant and strong acid. Flammable labeling is required.