An Industrial Salt-Bridge Junction Tube

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Abstract
A brief review of the literature on cells utilizing liquid‐liquid junctions has been made. Some common errors, due to the improper construction of industrial types of salt‐bridge devices, have been discussed. A rugged industrial type of “salt‐bridge” tube has been described. A relatively thin section for the continuous leakage of potassium chloride solutions has been obtained by using a controlled crack through the wall of a glass tube. This specific type of leakage device favors a high velocity of potassium chloride flow under normally small differences of head, yet only relatively small volumes of potassium chloride solution flow through the junction. A variety of forms of this type of salt‐bridge tube may be constructed in order to obtain certain specific resistances or a leakage path in a symmetrical cylindrical tube.

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