【摘要】 应用阿贝折射仪测量液体的折光率以确定其组成是化工生产与科研中常用的一种手段。在5~30℃范围测定了R141b与THF、乙醇及甲醇构成的两组分溶液的折光率,结果表明组成与折光率之间呈线性关系,其相关系数均在0.995以上,标准偏差均在0.0015以下,且实验值与文献值相符。该方法完全适合用于R141b相关溶液常温下组成的测定。更多还原

【Abstract】 It is a common means in chemical industry and research to determine the composition of a solution by measuring its refractive index.Refractive indexes of different compositions of there kinds of solutions,R141b and THF,ethanol and methanol respectively,were measured from 5 to 30 ℃,which showed that there exists linear relationship between refractive indexes and compositions,with correlation coefficients not less than 0.990 and standard deviations not more than 0.0015,and data from tests are equivalent with those from literatures.So the method can be used to determine the compositions of some R141b solutions at common temperature absolutely.更多还原