4-羟基苯甲醛及其溴代物在氯仿中溶解度测定和关联  

MEASUREMENT AND CORRELATION OF SOLUBILITIES OF 4-HYDROXYBENZALDEHYDE AND ITS BROMO-DERIVATIVES IN CHOROFORM

作　　者：魏东炜[1] 姜浩锡[1] 井欣[1] 袁继堂[1] 

机构地区：[1]天津大学石油化工技术开发中心,天津300072

出　　处：《化工学报》2004年第7期1192-1195,共4页CIESC Journal

摘　　要：Solubilities of 4-hydroxybenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 3,5 -dibromo-4-hydroxybenzaldehyde in chloroform were measured at temperatures ranging from 283.15 K to 323.15 K.The measurements of temperature and enthalpy of fusion of pure solutes were used for caculation of solubility by ideal solution model,which was higher than the experimental values.The very low solubility in chloroform was due to self association of solute molecules.A λh formula was used to fit the data and had shown good correlation results.Solubilities of 4-hydroxybenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 3,5 -dibromo-4-hydroxybenzaldehyde in chloroform were measured at temperatures ranging from 283.15 K to 323.15 K.The measurements of temperature and enthalpy of fusion of pure solutes were used for caculation of solubility by ideal solution model,which was higher than the experimental values.The very low solubility in chloroform was due to self association of solute molecules.A λh formula was used to fit the data and had shown good correlation results.

关 键 词：溶解度 4-羟基苯甲醛 3-溴-4-羟基苯甲醛 3.5-二溴-4-羟基苯甲醛 氯仿 缔合 关联 

分 类 号：TQ013.1[化学工程]