DIFFUSION COEFFICIENTS OF SOME ORGANIC AND OTHER VAPORS IN AIR
DIFFUSION COEFFICIENTS OF SOME ORGANIC AND OTHER VAPORS IN AIR
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DOI：
10.1021/ac60263a006
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发表时间：
1968-01-01
影响因子：
7.4
通讯作者：
LUGG, GA
中科院分区：
文献类型：
--
作者：
LUGG, GA
测定了147种有机蒸气和其他蒸气在25℃和760 mm下向空气中扩散的扩散系数。这些数值与9种预测方法的计算值进行了比较。分别由Chen和Othmer以及Wilke和lee方程计算的扩散系数中，大约75%和70%的扩散系数在平均观测值的±5%以内。Hirschfelder， Bird和Spotz方程适用于高分子量酸，醇和酯。其他六个方程对于估计液体蒸气进入空气的扩散率值有限。
Diffusion coefficients of 147 organic and other vapors diffusing into air have been determined at 25 C and 760 mm. These values have been compared with the calculated figures from nine prediction methods. Approximately 75% and 70% of the diffusion coefficients calculated by the Chen and Othmer, and Wilke andLee equations, respectively, were within±5% of the mean observed values. The Hirschfelder, Bird, and Spotz equation is satisfactory for application to high molecular weight acids, alcohols, and esters. The other six equations have limited value for the estimation of diffusivity of the vapors of liquids into air.