Rod electrode

Electroplating. Most silver-plating baths employ alkaline solutions of silver cyanide. The silver cyanide complexes that are obtained in a very low concentration of free silver ion in solution produce a much firmer deposit of silver during electroplating than solutions that contain higher concentrations. An excess of cyanide beyond that needed to form the Ag(CN)2 complex is employed to control the concentration. The silver is added to the solution either directly as silver cyanide or by oxidation of a silver-rod electrode. Plating baths frequently contain 40—140 g/L of silver cyanide... 

Figure 22.4 Approximate variation of resistance to ground with the length of pipe or a rod electrode lor a particular value of resistivity of soil...

High Ailoy Content Cracking in service, Any welds made Rods/electrodes Irregular reduction Use neutral flux or... 

From Fig. 10.40 it will be seen that contact between the electrolyte (soil or water) and the copper-rod electrode is by porous plug. The crystals of CUSO4 maintain the copper ion activity at a constant value should the halfcell become polarised during measurements. The temperature coefficient of such a cell is extremely low, being of the order of 1 x 10" V/°C and can thus be ignored for all practical purposes. To avoid errors due to polarisation effects, it is necessary to restrict the current density on the copper rod to a... 

Apparatus. Use the apparatus shown in Figs. 14.2(a) and (b). The generator cathode (isolated auxiliary electrode) consists of platinum foil (4 cm x 2.5 cm, bent into a half cylinder) and the generator anode (working electrode) is a rectangular platinum foil (4 cm x 2.5 cm). For potentiometric end point detection, use a platinum-foil electrode 1.25 cm x 1.25 cm (or a silver-rod electrode) in combination with an S.C.E. connected to the cell by a potassium chloride- or potassium nitrate-agar bridge. 

Figure 16.15 shows that four rods (electrodes) are drilled in the polluted area. An electric current is passed between the electrodes, melting the soil between them. Melting starts near the ground surface and moves downward. As the soil melts, the electrodes sink further into the ground, causing deeper soil to melt. When the power is turned off, the melted soil cools and vitrifies, which means it... 

Preparative electrochemical oxidations of acylsilanes proceed smoothly in methanol in an undivided cell equipped with carbon rod electrodes to give the corresponding methyl esters. The C-Si bond is cleaved and methanol is introduced at the carbonyl carbon (Scheme 22) [16]. 

The column labeled plain contains data from 1/8-inch rod electrodes and that labeled flange contains data for the negative electrode flanged and the other electrode a 1/8 inch rod. Values in parentheses are taken from a Calcote et al. correlation between the two different types of electrode sets. 

A linear quadrupole mass analyzer consists of four hyperbolically or cyclindrically shaped rod electrodes extending in the z-direction and mounted in a square configuration (xy-plane, Figs. 4.31, 4.32). The pairs of opposite rods are each held at the same potential which is composed of a DC and an AC component. 

Figure 3.7 Schematic and cross section of a linear quadrupoie mass analyzer with cylindrical rod electrodes. (H. Kienitz (ed.), Massenspektrometrie (1968), Verlag Chemie, Weinheim. Reproduced by permission of Wiley-VCH)...

WITH ADHESIVE TAPE FASTEN THE BARED END OF THE WIRE LEADING FROM ONE CARBON ROD ELECTRODE TO THE TOP OF THE FIRST BATTERY. 

Various types of discharge chambers are available with plate or tubular geometry. The classical and most frequently used type is the tubular, often also called Van der Made-type or Welsbach-type (Figure 2-2). The central rod electrode technology is a more recent development, especially designed for applications with pure oxygen as feed gas (Masschelein, 1994). 

Figure 15. Typical steady-state current response for a ferrocene-ethylene oxide-siloxane polymer (I) / glutamate oxidase / graphite rod electrode at an applied potential of +350 mV vs. SCE.

Part C, Specifications for welding rods, electrodes and filler metals Part D, Properties... 

Figure 8. Variation of ground resistance of rod electrodes of different diameter with length (British code)...

For electrophoresis (Fig. 8.6b) the cell is stood in a 10 x 10 x 25 cm glass tank, provided with a platinum wire or carbon rod electrode, which serves as lower buffer reservoir. Alternatively a plastic box of similar dimensions may be used for the reservoir. The gel is covered with a layer of buffer and electrical contact with a similar upper reservoir is established by a wick of Whatman 3 MM paper soaked with buffer. The wick is 16 cm wide, and one layer of paper is used per millimeter gel thickness. The distance between the cell and... 

QUARTZ ROD ELECTRODE HOLDER HINGE JOINT GEAR KNOB MOTOR... 

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