| 某些有机物在溴化银重结晶过程中的作用 |
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| 引用本文： | 王荣琴.某些有机物在溴化银重结晶过程中的作用[J].影像科学与光化学,1987,5(2):58-60. |
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| 作者姓名： | 王荣琴 |
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| 作者单位： | 中国科学院感光化学研究所, 北京 |
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| 摘 要： | 卤化银晶体的习性对乳剂的照相性能起决定性作用。因此多年来人们对影响卤化银晶体物理成熟过程的各种因素进行了研究。
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| 关 键 词： | 感光化学 溴化银 晶体生长调变剂 十六烷基三甲基溴化铵 十二烷基硫酸钠 |
| 收稿时间： | 1986-04-18 |
THE ROLE OF SOME ORGANIC COMPOUNDS IN THE RECRYSTALLIZATION OF AQUEOUS AgBr DISPERSIONS |
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| WANG RONG-QIN.THE ROLE OF SOME ORGANIC COMPOUNDS IN THE RECRYSTALLIZATION OF AQUEOUS AgBr DISPERSIONS[J].Imaging Science and Photochemistry,1987,5(2):58-60. |
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| Authors: | WANG RONG-QIN |
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| Affiliation: | Institute of Photographic Chemistry, Academia Sinica, Beijing |
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| Abstract: | Turbidimetry was used at 21℃ to measure the growth rate of AgBr crystals which were dispersed in the aqueous solution of sodium dodecyls sulphate (SDS), 3,4-dimethyl-1,2,4-triazo-le-5-thione (DMT) or cetyl trimethyl ammonium bromide (CTAB) at pBr4 or pAg4. The results indicated that the increase of the average crystal volume was not due to the coagulation of particles but involved in a process of recrystallization, i.e. Ostwald ripening. The addition of SDS (10-5 mol·dm-3) causes the acceleration of AgBr recrystallization in pAg4 and the retardation of AgBr growth in pBr4, whereas the addition of DMT has a great restraining effect on the AgBr growth and the addition of CTAB accelerates AgBr growth by adsorbed C+. The possible explanation of the above-mentioned phenomena in AgBr recrystallization was also discussed. |
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| Keywords: | photographic chemistry silver bromide crystal-growth modifiers cetyl tri-methyl ammonium bromide sodium dodecyls sulphate |
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