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研究生:許書銘
研究生(外文):Shu-Ming Hsu
論文名稱:電解質混合溶劑溶解度之研究
論文名稱(外文):A Study on the Solubilities of Electrolyte Mixed Solvent Systems
指導教授:曾憲政曾憲政引用關係
指導教授(外文):Hsieng-Cheng Tseng
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:化學工程系
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2000
畢業學年度:88
語文別:中文
中文關鍵詞:溶解度電解質混合溶劑平均活性係數
外文關鍵詞:solubilityelectrolytemixed solventsmean activity coefficient
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本論文主要目的在於探討電解質在混合溶劑中的溶解度,包括實驗與理論兩部分。在實驗方面於溫度為298.15K下,採用重量分析法,完成氯化鈉與溴化鈉在水+甲醇、+乙醇、+丙醇或+正丁醇等混合溶劑中溶解度之量測。在理論方面,本文使用Chen模式計算雙成份與三成份系統中電解質之平均活性係數來迴歸出三成份混合溶劑系統溶解度數據。由溶解度實驗值與迴歸數據之比較發現,本研究之計算方法可得相當不錯之結果。

The objective of this study is to investigate the solubility of salt in mixed solvent systems. In the experimental part, a gravimetric analysis apparatus was employed to measure the solubility at 298.15K for nine ternary systems of ethanol-water-NaCl, n-propanol-water-NaCl, i-propanol -water-NaCl,n-butanol-water-NaCl, methanol-water-NaBr, ethanol -water -NaBr, n-propanol-water-NaBr, i-propanol-water-NaBr, and n-butanol -water-NaBr.
In the theoretical part, the Chen’s models(1982, 1986) were used to calculate the mean activity coefficients of electrolyte in both binary and ternary electrolyte solutions, respectively. A calculation scheme with Chen’s models is developed to determine the solubilities for the nine ternary systems mentioned above. It was found that the calculated results agree well with the experimental data, with mean absolute deviations ranging from 0.013 to 0.092 for the nine ternary systems studied.

第一章 緒論……………………………………………………………1
第二章 電解質溶液之熱力學基本性質………………………………3
2.1電解質溶液之濃度單位…………………………………….3
2.2電解質溶液之熱力學基本性質…………………………….3
2.2.1電解質平均活性係數……………………………………3
2.2.2離子強度…………………………………………………5
2.2.3介電常數......................................5
2.3電解質溶液中離子之化勢………………………………….6
2.4 溶液中溶質之溶解度………………………………………7
第三章 文獻回顧………………………………………………………9
3.1電解質溶解度實驗及數據關聯…………………………….9
3.2電解質溶解度計算模式…………………………………….12
3.3電解質溶液平均活性係數計算模式……………………….15
第四章 電解質溶液溶解度實驗………………………………………21
4.1 前言………………………………………………………….21
4.2 電解質溶液溶解度實驗…………………………………….21
4.2.1實驗設備………………………………………………….21
4.2.2實驗藥品………………………………………………….22
4.2.3實驗步驟………………………………………………….23
4.3分析方法………………………………………………………24
4.4結果與討論……………………………………………………25
4.4.1裝置測試………………………………………………….25
4.4.2決定實驗操作時間……………………………………….26
4.4.3溶解度實驗結果………………………………………….26
第五章 理論說明………………………………………………………44
5.1 平均活性係數計算模式…………………………………….44
5.1.1 Chen Model,1982[22]單電解質水溶液系統………….44
5.1.2 Chen Model,1986[25]電解質混合溶劑系統………….46
5.2 電解質混合溶劑平均活性係數計算流程………………….49
5.3 結果與討論………………………………………………….52
5.3.1 參數分析…………………………………………………52
5.3.2 溶解度計算結果與討論………………………………….....54
第六章 結論與未來展望………………………………………………84
參考文獻……………………………………………………………….86
符號說明……………………………………………………………….93
作者簡介……………………………………………………………...96

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