Sliver iodide

Establishing the surface area is the next concern. Electrode surfaces are seldom flat. Instead, they tend to display a set of different crystal faces. Sliver Iodide electrodes, prepared by amalgamation of silver with mercury, followed by vapour deposition of iodine, look smooth and shiny to the naked eye but reveeil crystallites under the electron microscope. Surface Irregularities not only complicate the assessment of the real area, they may also Interfere in the analysis of impedance spectra In terms of equivalent circuits. After drying, the surface may be studied by the usual optical methods (sec. 1.2) with the famlllrir caveat that drying may change these properties. Anyway, for a number of oxides and silver iodide It Is now established that electrodes can be made which have... 

Blood Serum or other Biological Materials by Substoichlometric Precipitation of Iodine as Sliver Iodide. J. Radloanal. Chem. T3, No. 2. 419 (1973). 28 24084... 

Sliver. Frepd by addn of Ag nitrate soin to a soln of the Na salt (see above) (Refs 3 10) ign point 181° (Ref 12). When treated with alkyl iodides it gives alkyl esters. From the reaction with Me iodide a colorless and a yellow dimethyl ester were isolated (Ref 3). The UV spectra of the colorless (called a) and the yellow (called 3) esters are given in Ref 9 it is concluded that the color of the / ester is due to a nitroso group, hence its structure is probably (CH301 Q2CH2... 

It is important that the nitrate-bath be made with pure nitrate of silver, obtained by dissolving silver in pure nitric acid. When common commercial nitrate of silver is used, it is impossible to obtein good results with certainty and uniformity, and it generally becomes necessary to add acetate of silver to the bath in order to obtain sufficient density in the blacks, When the nitrate of sliver is pure, and nearly all the free nitric acid got rid of by redissolving and rocrystallizing it, the bath works well without any additions. It gradually acquires iodide of silver, nitrate of potassa, and organic impurities by uso. 

Silver iodide. Turqouise atom is sliver and yellow atom is iodine, p l i s e r s resource... 

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