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|Section2= |Section3= }} Bis(2-ethylhexyl) phthalate (di-2-ethylhexyl phthalate, diethylhexyl phthalate, DEHP; dioctyl phthalate, DOP), is an organic compound with the formula C8H4(C8H17COO)2. DEHP is the most common member of the class of phthalates which are used as plasticizers. It is the diester of phthalic acid and the branched-chain 2-ethylhexanol. This colorless viscous liquid is soluble in oil, but not in water. Accounting for an almost 54% market share in 2010, DEHP is a High Production Volume Chemical.〔(【引用サイトリンク】title= Market Study Plasticizers )〕 ==Production and use== Due to its suitable properties and the low cost, DEHP is widely used as a plasticizer in manufacturing of articles made of PVC.〔 Plastics may contain 1% to 40% of DEHP. It is also used as a hydraulic fluid and as a dielectric fluid in capacitors. DEHP also finds use as a solvent in glowsticks. Approximately three billion kilograms are produced annually worldwide. It is estimated that at least 241 million pounds of dioctyl phthalates were produced in the US in 1999, so DEHP is a High Production Volume Chemical. Four companies operating five facilities are the primary U.S. producers of DEHP: Aristech Chemical Company in Neville Island, Pennsylvania; Hatco Chemical Company in Fords, New Jersey; Teknor Apex Company in Brownsville, Tennessee and Hebronville, Massachusetts; and Tennessee Eastman Company in Kingsport, Tennessee. Industrial production entails the reaction of phthalic anhydride with 2-ethylhexanol: :C6H4(CO)2O + 2 C8H17OH → C6H4(CO2 C8H17)2 + H2O 2-Ethylhexanol is chiral, and the resultant DEHP consists of a mixture of (''R'',''R'')-, (''S'',''S'')-, and (''R'',''S'')-isomers (left). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bis(2-ethylhexyl) phthalate」の詳細全文を読む スポンサード リンク
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