摘要
在116~234℃范围内用饱和气流法测定了工业黄磷的磷蒸气压,并拟合得到磷蒸气压方程:lnPvr= - 0.845994- [7.018404(1- Tr )1.5 - 0.964256(1- Tr )6 ]/Tr, 其平均绝对相对误差为0.55% ,最大相对误差为1.05% 。用它导出的磷气化热计算式与文献报导的计算结果极一致。
The phosphorus vapor pressures of liquid industrial yellow phosphorus were measured by the saturated gas current in the range of temperature 116 to 234℃.The data were fitted with the equation: ln P vr =-0.845994-[7.018404(1-T r ) 1.5 -0.964256(1-T r ) 61/T r Where, P vr was the reduced vapor pressure; T r was the reduced temperature. Its mean absolute relative error was 0.55%, and the maximal value was 1.05%. Using this equation, the formula for heat of vaporization was inferred:ΔH v =RT c [10.527606(1-T r) 0.5 -3.509202(1-T r ) 1.5 -5.785536(1-T r ) 5+4.62128(1-T r ) 6], R was the universal gas constant.Its computed values were very identical with the results of the formula for liquid yellow phosphorus reported in the literature.
出处
《化学工程》
EI
CAS
CSCD
北大核心
1999年第6期39-40,50,共3页
Chemical Engineering(China)
基金
贵州省科学技术基金
关键词
蒸气压
黄磷
液体
测定
关联
vapor pressure,industrial yellow phosphorus,liquid,correlation