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The bifunctional alcohol 1,4-butanediol is a versatile intermediate for the chemical industry. It reacts with dicarboxylic acids to yield polyesters, with diisocyanates to yield polyurethanes, and with phosgene to yield chloroformates. The main applications for butanediol are the production of cellular plastics, thermoplastic polyesters, hot-melt adhesives and plasticizers. In the textile industry, 1,4-butanediol is an additive in sizes and finishing baths. Similar to glycerol, it acts as a plasticizer for water-soluble binders. Plasticized products are less tacky in a humid atmosphere than those treated with glycerol because 1,4-butanediol is not as hygroscopic. Polybutyleneterephthalate (PBT) is a thermoplastic polyester produced by the polycondensation of 1,4-butanediol with terephthalic acid or dimethylterephthalate. Preference is usually given to the reaction with the ester, which can be purified more easily to the degree required for polycondensation. 1,4-Butanediol is used industrially as a solvent and in the manufacture of some types of plastics, elastic fibers and polyurethanes. In organic chemistry, 1,4-Butanediol is used for the synthesis of ?-butyrolactone (GBL). In the presence of phosphoric acid and high temperature, it dehydrates to the important solvent tetrahydrofuran. At about 200 °C in the presence of soluble ruthenium catalysts, the diol undergoes dehydrogenation to form butyrolactone. FDA warning against products containing GHB and its prodrugs, such as 1,4-butanediol. It is also used as a recreational drug known by some users as "One Comma Four", "One Four Bee" or "One Four B-D-O". It exerts effects similar to ?-hydroxybutyrate (GHB), which is a metabolic product of 1,4-butanediol. Misuse has also resulted in addiction and death. Meimei is a website edit person of the guidechem.com.Guidechem.com was established with the aim to build the most comprehensive database of chemical products and contain most complete suppliers, making chemical trading more efficient, convenient and safe. facilitate global chemical trading and bring chemical buyers & sellers from all over the world to one common chemical platform.And now guidechem.com B2B network has been named "2010 China's e-commerce website industry TOP100".
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