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Determination and prediction of K_(ow) and dimensionless Henry's constant (H) for 6 ether compounds at several temperatures

机译:几种温度下6种醚化合物的K_(ow)和无量纲亨利常数(H)的测定和预测

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The octanol-water partition coefficient (K_(ow)) and air-water partition coefficient (K_(aw) as well as the dimensionless Henry's constant (H) are used to calculate the transport and fate of chemicals in the environment or eco-system. In this work, the K_(ow) and the H were measured for 6 ether compounds; di-n-butyl ether (DBE), di-isopropyl ether (DIPE), tert-butyl ethyl ether (ETBE), tert-butyl methyl ether (MTBE), propyl vinyl ether (PVE) and tert-amyl methyl ether (TAME) at 4 different temperatures. The K_(ow) was directly measured by using a conventional slow stirring (SS) method, while the H was measured using headspace gas chromatography (HSGC). Additionally, the measured K_(ow) and H values were compared with the predicted values by the fragment constant method or HENRYWIN program approaches.
机译:辛醇-水分配系数(K_(ow))和空气-水分配系数(K_(aw)以及无量纲的亨利常数(H)用于计算环境或生态系统中化学品的运输和结局在这项工作中,测量了6种醚化合物的K_(ow)和H;二正丁基醚(DBE),二异丙醚(DIPE),叔丁基乙基醚(ETBE),叔丁基甲基醚(MTBE),丙基乙烯基醚(PVE)和叔戊基甲基醚(TAME)在4个不同的温度下,使用常规缓慢搅拌(SS)方法直接测量K_(ow),同时测量H使用顶空气相色谱法(HSGC),另外,通过片段常数法或HENRYWIN程序方法将测得的K_(ow)和H值与预测值进行比较。

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