Tetrahydrofuran CAS 109-99-9

Tetrahydrofuran, abbreviated THF, is a heterocyclic organic compound. It belongs to the group of ethers and is the product of the complete hydrogenation of the aromatic compound furan. Tetrahydrofuran is one of the strongest polar ethers, used as a moderately polar solvent in chemical reactions and extractions, and is a colourless volatile liquid at room temperature, with an odour similar to that of ether. Soluble in water, ethanol, ether, acetone, Chemicalbook benzene and other most organic solvents, known as the ‘universal solvent’. Room temperature and water can be partially miscible, part of the illegal reagent business is to take advantage of this point on the tetrahydrofuran reagent to water profiteering. Since THF has the tendency to form peroxide in storage, industrial products are generally added with antioxidant BHT. moisture content ≦ 0.2%. It has the characteristics of low toxicity, low boiling point and good fluidity.
At present, the main domestic producers of tetrahydrofuran include BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, PetroChina Qian Guo Refinery, etc. In addition, some PBT factories also by-produce part of it. LyondellBasell Industrial Company in the United States and Europe tetrahydrofuran sales indicators are: purity 99.90% Chemicalbook, chromaticity (APHA) 10, moisture 0.03%, THF hydroperoxides 0.005%, 0.05% of the total number of impurities, oxidation inhibitors 0.025% to 0.035%. The most important use of THF in the polyurethane industry is as a monomer raw material for polytetrahydrofuran diol (PTMEG), which is also one of the main uses of THF.

Quantity:
Availability:





Inquire Add to Basket

Model:
109-99-9
Brand:
bosschemical
Code:
109-99-9

Product Description

Tetrahydrofuran
CAS No.109-99-9

Alias:TETRAMETHYLENE ETHER GLYCOL 2000 POLYMER;Tetrahydrofuran ,99.8% [Tetrahydrofuran,ACS/HPLC Certified];Tetrahydrofuran, 99.6%, stabilized with BHT, for analysis ACS;Tetrahydrofuran, 99+%, stabilized with BHT, extra pure;

Molecular formula：C4H8O

Molecular weight：72.11

Structural formula：

四氢呋喃结构式

1. Performance and use:

The raw material of spandex synthesis reaction, tetrahydrofuran itself can be polycondensed (by cation initiated ring-opening polymerisation) into polytetramethylene ether glycol (PTMEG), also known as tetrahydrofuran homopolymer ether. PTMEG and toluene diisocyanate (TDI) to make abrasion-resistant, oil-resistant, low-temperature performance, high strength of special rubbers; and with dimethyl terephthalate and 1,4-butanediol to make block polyether polyester elastomer materials. and 1,4-butanediol to make block polyether polyester elastomers. The relative molecular mass of 2000 PTMEG and p-methylene bis (4-phenyl) diisocyanate (MDI) made of polyurethane elastic fibres (spandex, SPANDEX fibres), special rubbers and some special-purpose coatings of the raw material.The most important use of THF is to use to produce PTMEG, according to rough statistics, the world's more than 80% of the THF is used to produce PTMEG, and PTMEG, and PTMEG, and PTF is used to produce the most important products of the world. PTMEG, and PTMEG is mainly used for the production of elastic spandex fibers. 2. excellent performance of the solvent tetrahydrofuran is a commonly used excellent solvent, especially suitable 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 electric Chemicalbook aluminium plating solution can be arbitrarily controlled thickness of the aluminum layer and the Brightness. Magnetic tape coating, PVC surface coating, cleaning PVC reactor, removing PVC film, cellophane coating, plastic printing ink, thermoplastic polyurethane coating, solvent for adhesives, widely used as surface coating, protective coating, ink, extractant and surface treatment agent for artificial synthetic leather. 3. Used as raw material 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 in the synthesis of cough, Rifamycin, progesterone and some hormone drugs. Tetrahydrothiophenol is generated by hydrogen sulphide treatment, which can be used as the odourant in fuel gas (identification additive), and is also the main solvent in the pharmaceutical industry.4. Other Uses Chromatographic solvents (Gel Permeation Chromatography), used for flavouring natural gas, solvent for acetylene extraction, light stabilizers of polymer materials and so on. 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.

2.Technical indicators: