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OALib Journal期刊
ISSN: 2333-9721
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二甲基苯基乙氧基硅烷饱和蒸汽压的研究
DOI: doi:10.3969/j.issn.1671-7627.2012.06.022, PP. 106-111
Keywords: 二甲基苯基乙氧基硅烷,饱和蒸汽压,antoine方程,摩尔蒸发焓
Abstract:
通过真空减压精馏分离得到高纯度二甲基苯基乙氧基硅烷,利用斜式沸点仪测定二甲基苯基乙氧基硅烷在1.325～99.325kpa范围内的饱和温度并利用antoine方程进行关联,得到antoine常数a=5.07780,b=969.550,c=-152.478k。饱和温度计算值与实测值之间的最大相对偏差不大于0.24%。还利用clausius-clapeyron方程估算了348.32～467.92k范围内二甲基苯基乙氧基硅烷的摩尔蒸发焓。
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