A model based on the two liquid theory along with van der Waals one-fluid mixing rules was proposed for representing the density of liquid mixture.

• 液体混合物密度的关联和预测陈新志，侯虞钧（浙江大学化工热力学研究室，杭州310027）关键词密度，双液理论，液体混合物1引言液体的密度数据不仅在许多工程设计中不可缺少，而且是流体理论研究的重要参数。