彩色显影剂CD-4质子化常数和半醌摩尔吸光系数的测定

doi:10.7517/j.issn.1674-0475.1990.01.58

影像科学与光化学 ›› 1990, Vol. 8 ›› Issue (1): 58-62.DOI: 10.7517/j.issn.1674-0475.1990.01.58

彩色显影剂CD-4质子化常数和半醌摩尔吸光系数的测定

毛英, 周本茂, 任新民

中国科学院感光化学所北京 100012

收稿日期:1988-06-03 修回日期:1989-11-15 出版日期:1990-02-20 发布日期:1990-02-20
通讯作者: 任新民

MEASURING THE MOLAR EXTINCTION COEFFICIENT OF SEMIQUINONE AND THE PROTONATION CONSTANTS OF THE COLOR DEVELOPER CD-4

MAO YING, ZHOU BEN-MAO, REN XIN-MIN

Institute of Photographic Chemistry, Academic Sinica, Beijing 100012, P. R. China

Received:1988-06-03 Revised:1989-11-15 Online:1990-02-20 Published:1990-02-20

摘要/Abstract

摘要： 对苯二胺类彩色显影剂(PPD_s)经两步电子转移依次生成半醌自由基(SQDI_s)和醌二亚胺(QDI_s)^[1]。

关键词: 彩色显影剂, 质子化常数, 半醌自由基摩尔吸光系数

Abstract: The protoration constants of the color developer CD-4 are measured by means of spectrometry in this paper.Those values are 10^7.2dm³ mol^-1;10^2.7dm³mol^-1 respectively which is very closed to obtained results by cyclic voltammetry method.The molar extinction coefficient of the semiquinone of CD-4 is measured in the HAc-NaAc medium by measuring intermediate molar extinction coefficient melhod.The value is (9.62+0.22) 10³dm³ mol^-1 cm^-1 (298K).

Key words: color developer, protonation constants, semiquinone, molar extinction coefficient

毛英, 周本茂, 任新民. 彩色显影剂CD-4质子化常数和半醌摩尔吸光系数的测定[J]. 影像科学与光化学, 1990, 8(1): 58-62.

MAO YING, ZHOU BEN-MAO, REN XIN-MIN. MEASURING THE MOLAR EXTINCTION COEFFICIENT OF SEMIQUINONE AND THE PROTONATION CONSTANTS OF THE COLOR DEVELOPER CD-4[J]. Imaging Science and Photochemistry, 1990, 8(1): 58-62.

彩色显影剂CD-4质子化常数和半醌摩尔吸光系数的测定

MEASURING THE MOLAR EXTINCTION COEFFICIENT OF SEMIQUINONE AND THE PROTONATION CONSTANTS OF THE COLOR DEVELOPER CD-4

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价