Tetrahydrofuran/CAS:109-99-9

 Tetrahydrofuran, abbreviated as THF, is a heterocyclic organic compound. Belonging to the ether class, it is a fully hydrogenated product of the aromatic compound furan. Tetrahydrofuran is one of the strongest polar ethers, used as a medium polarity solvent in chemical reactions and extraction. It is a colorless and volatile liquid at room temperature, with a similar odor to ether. Dissolved in most organic solvents such as water, ethanol, ether, acetone, and benzene, it is called a "universal solvent". At room temperature, it is partially miscible with water, and some illegal reagent merchants take advantage of this to make huge profits by mixing tetrahydrofuran reagent with water. Due to the tendency of THF to form peroxides during storage, industrial products generally add antioxidant BHT. Moisture content ≤ 0.2%. It has the characteristics of low toxicity, low boiling point, and good fluidity.

Usage

1.spandex synthesis reaction of raw materials tetrahydrofuran itself can be polycondensation (by cation initiated ring-opening polymerization) into polytetramethylene ether glycol (PTMEG), also known as tetrahydrofuran homopolymerization ether. PTMEG and toluene diisocyanate (TDI) made of abrasion-resistant, oil-resistant, low-temperature performance, high strength of the specialty rubbers; and with dimethyl terephthalate and 1,4-butanediol made of block polyether polyester elastomer materials. The relative molecular mass of the PTT is 2,000. Relative molecular mass of 2000 PTMEG and p-methylene bis (4-phenyl) diisocyanate (MDI) made of polyurethane elastic fibers (spandex, SPANDEX fiber), special rubbers and some special-purpose coatings raw materials.THF is the most important use is used for the production of PTMEG, according to rough statistics, more than 80% of the world's THF is used for the production of PTMEG, and PTMEG, and PTMEG, and PTMEG, and PTMEG, and PTMEG, and PTMEG, and PTMEG, and PTMEG. PTMEG, and PTMEG is mainly used for the production of elastic spandex fibers.
2.excellent performance solvent tetrahydrofuran is a commonly used good solvents, especially for dissolving PVC, polyvinylidene chloride and butylaniline, widely used as a solvent for surface coatings, anticorrosive coatings, printing inks, tapes and film coatings for the electro-Chemicalbook Aluminum Plating Liquid can be arbitrarily control the thickness of aluminum and Brightness. Magnetic tape coating, PVC surface coating, cleaning PVC reactor, removing PVC film, cellophane coating, plastic printing ink, thermoplastic polyurethane coating, solvents for adhesives, widely used in surface coatings, protective coatings, inks, extractants and surface treatment agents for synthetic artificial leather.
3.Used as raw materials for organic synthesis such as pharmaceuticals used in the production of tetrahydrothiophene, 1.4 - dichloroethane, 2.3 It is used to produce tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, valerolactone, butyrolactone and pyrrolidone. In the pharmaceutical industry, it is used for the synthesis of cough, Rifamycin, progesterone and some hormone drugs. Tetrahydrothiophenol is generated by hydrogen sulfide treatment, which can be used as odorant in fuel gas (identification additives), and is also the main solvent in the pharmaceutical industry.
4. Other Uses Chromatographic solvent (gel permeation chromatography), used for natural gas flavoring, solvent for acetylene extraction, and light stabilizers for polymer materials. With the wide application of tetrahydrofuran, especially the rapid growth of China's spandex industry in recent years, making China's demand for PTMEG is increasing, and the resulting demand for tetrahydrofuran is also a fast-growing trend.

Packaging and Shipping

180KG/Drum or as customer requirements.
Can deliver by ocean and air

Keep and storage

Shelf life:24 month from date of manufacture in original unopened packaging stored in a cool dry place out of direct sunlight, water.
Ventilated warehouse, Low temperature drying, Separated from oxidants, acids.