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Mixed crystals of silver chloride with silver bromide, and silver bromide with silver iodide, in various proportions of the components, were examined by the X-ray powder method of crystal structure analysis. The AgClAgar mixtures showed the simple cubic structure (NaCl type) characteristic of the pure components, with a lattice spacing lying between those of the two components and following a linear relation with the molecular concentration of each component.Most of the AgBr-AgI. mixtures showed the existence of twoTable II
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A silver nitrate test is described for the quantitative determination of residual hypo in photographic prints. The hypo is converted in situ to silver sulfide, the transmission density of the sulfide determined, and the hypo content obtained by reference to a standard curve.The method used to establish the standard curve is outlined, the data being verified by quantitative analyses.A simplified procedure is suggested involving the application of a drop of silver nitrate to the back of the print and then matching the spot visually with a set of standards.  相似文献   

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It has been shown that 0.15 N hydrogen chloride solution is most suitable for employment as precipitant in the quantitative estimation of silver ion, this procedure reducing adsorption to a minimum.When a more dilute solution of reagent is applied, there is a tendency for a portion of the silver to remain dissolved.When hydrogen chloride possessing a greater concentration than 0.15 N is utilized in this determination, adsorption of Cl? ion, and, to a lesser extent, of Ag+ ion, readily occurs.The data presented here have been obtained by careful application of a recognized method, during the course of which temperature effect, and solubility data were given due consideration. Meticulous nephelometric examination was subsequently accorded each experimental sample prior to the calculation of results.  相似文献   

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刘兆华 《大众科技》2014,(9):157-158
结合实际生产情况,提出对分银炉传动机构的电气控制线路进行改造,使操作更方便,刹车更迅速,提高了银转炉的转动准确度。  相似文献   

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Mol. per cent. AgCl.Mol. per cent. AgBr.Lattice spacing 100 Planes.
01002.884
20802.862
40602.840
50502.827
60402.815
80202.794
10002.770
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