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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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1,3,5,7-四甲基环四硅氧烷饱和蒸汽压的测定与关联
DOI: doi:10.3969/j.issn.1671-7627.2012.02.023, PP. 111-113
Keywords: 1,3,5,7-四甲基环四硅氧烷,饱和蒸汽压,antoine方程,平均摩尔蒸发焓
Abstract:
使用斜式沸点仪测定1,3,5,7-四甲基环四硅氧烷在1.325～100.325kpa范围内的饱和温度数据。采用非线性回归方法，利用eviews5.0软件得到1,3,5,7-四甲基环四硅氧烷的antoine参数a、b和c的值分别为8.67874、1167.85和-93.579k。由antoine方程计算出的饱和温度与实验数据的绝对偏差为0.02～1.23k。通过clausius-clapeyron方程计算得到1,3,5,7-四甲基环四硅氧烷在实验温度范围内的平均摩尔蒸发焓为41.17kj/mol，常压沸点为411.5k。
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