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溶剂在卤化银乳剂的制备中起着非常重要的作用。本工作合成了1,8-二羟基-3,6-二硫代辛烷(1,8-dihydroxy-3,6-dithiaoctane或3,6-dithia-1,8-octane-diol简称DTO~*)。测定了桥键—S—CH_2—的形成,当把它加到乳化的母液中(0.18—1.0g/molAgBr)时,发现它能明显地促进卤化银微晶的生长,使颗粒变大,大小分布变得比较均一,感光度和反差均有所提高,同时使微晶的离子电导率下降。本文对这种影响进行了初步的讨论。
Solvents play a very important role in the preparation of silver halide emulsions. In this work, 1,8-dihydroxy-3,6-dithiaoctane or 3,6-dithia-1,8-octane-diol (DTO * ). The formation of the bridge, -S-CH 2 -, was determined and when added to the emulsified mother liquor (0.18-1.0 g / mol AgBr), it was found that it significantly promoted the growth of the silver halide crystallites, making the particles larger, Distribution becomes more uniform, sensitivity and contrast have increased, while the microcrystalline ionic conductivity decreased. This article has carried on the preliminary discussion to this kind of influence.