tetrahydrofuran

English name :Tetrahydrofuran

Chinese alias: oxacyclopentane; E ring oxygen; Anhydrous tetrahydrofuran; Oxygen heteromethyl tetrahydride; Tetramethylene oxide; 1, 4-epoxy butane; Tetramethyl oxygen

English alias :THF; Tetrahydrofuran. Oxolane; Sodium tri - SEC - butylborohydride; Butane, alpha and delta - oxide;

Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro -; Furanidine; 1, 2, 3, 4 - tetrahydro - 9 h - fluoren - 9 - one

CAS no. : 109-99-9

Molecular formula: C4H? O

Molecular weight: 72.11

EINECS no. : 203-786-5

1. Used as raw materials for solvent and organic synthesis.

2. Used as chromatographic reagent, organic solvent and intermediate of nylon 66. Tetrahydrofuran heterocyclic rings, also known as a oxygen oxygen pentane, tetramethylene oxide, is a synthetic pesticides benzene Ding Xi intermediates, on the other hand, can be directly used in synthetic fiber, synthetic resin, synthetic rubber, is also many polymer materials, precision tape and electroplating industrial solvents, are also used in adiponitrile, adipic acid, hexamethylenediamine, succinic acid, butyl glycol, gamma butyrolactone and so on, in the pharmaceutical industry, cough will clear, and can be used in the production of progesterone, complex and solvent used in pharmaceutical, etc.

3, tetrahydrofuran is a kind of important organic synthetic raw material and solvent of excellent performance, particularly applicable to dissolve PVC, polyethylene vinylidene chloride and butyl aniline, widely used for surface coatings, anticorrosive coatings, printing inks, tapes and film coating solvent, and used as reaction solvent, used in electroplating aluminum liquid can be arbitrary control layer thickness and light. Tetrahydrofuran self-condensable poly (by cationic ring-opening repolymerization) to polytetramethylene ether diol (PTMEG), also known as tetrahydrofuran homogeneous polyether. PTMEG and toluene diisocyanate (TDI) were used to make special rubber with wear-resisting, oil-resistant, low temperature and high strength. With dimethyl terephthalate and 1, 4-butanediol to make block polyether polyester elastic material. PTMEG with a relative molecular weight of 2000 and p-methylene bis (4-phenyl) diisocyanate (MDI) are raw materials for polyurethane elastic fiber (SPANDEX fiber), special rubber and some special coatings. In the aspect of organic synthesis, it is used to produce tetrahydrothiophene, 1.2-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone and pyrrolidone. In the pharmaceutical industry, THF is used to synthesize keperidin, redumycin, progesterone and some hormone drugs. THF is treated with hydrogen sulfide to produce tetrahydrothiophenol, which can be used as odor agent (identification additive) in fuel gas. THF can also be used as surface treatment agent for synthetic leather.