| 电位滴定法测量稳定剂的银盐溶度积和酸离解常数 |
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| 引用本文： | 刘晓晖,黎源,黄德音.电位滴定法测量稳定剂的银盐溶度积和酸离解常数[J].影像科学与光化学,2001,19(4):274-280. |
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| 作者姓名： | 刘晓晖 黎源 黄德音 |
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| 作者单位： | 上海交通大学化学化工学院, 上海200240 |
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| 基金项目： | 乐凯胶片公司资助项目 |
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| 摘 要： | 应用电位滴定法测量了烷基巯基四氮茚等一系列感光乳剂稳定剂的银盐溶度积和酸离解常数,其中有些化合物的常数属首次报道;所得数据表明:含巯基的四氮茚的银盐溶解度小于4-羟基-1,3,3a,7-四氮茚类化合物.同时应用Harmmett方程考察了感光乳剂稳定剂或防灰雾剂的性质,结果表明:从苯衍生物导出的σ值也可应用于预测杂环化合物的某些特性.
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| 关 键 词： | 电位滴定法 稳定剂 银盐溶度积 酸离解常数 |
| 收稿时间： | 2000-12-26 |
THE MEASUREMENT OF pKsp AND pKa OF SALTS OF STABILIZERS BY POTENTIOMETRY TITRATION |
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| LIU Xiao-hui,LI Yuan,HUANG De-yin.THE MEASUREMENT OF pKsp AND pKa OF SALTS OF STABILIZERS BY POTENTIOMETRY TITRATION[J].Imaging Science and Photochemistry,2001,19(4):274-280. |
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| Authors: | LIU Xiao-hui LI Yuan HUANG De-yin |
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| Institution: | Institute of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P.R. China |
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| Abstract: | The p K a and p K sp of photographic stabilizers and antifoggants measured in water at 25 ℃ by the method of potentiometry titration are discussed in this report. The constant of some compounds are reported for the first time. The results indicated that the p K sp of the tetrazole with SH group are less than TAI. The Hammett correlations of stabilizers and antifoggants are applied. |
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| Keywords: | potentiometry titration stabilizer solubility production dissociation constant |
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