Download PDF by Ellis J. H.: The Chemical Activity of the Ions of Hydrochloric Acid

By Ellis J. H.

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By Ellis J. H.

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Often referred as the replacement for the phosphate-hydroxide treatment method. EFFECTIVE TEMPERATURE - Overall effect on a human of air temperature, humidity and air movement. EFFLUENT - The solution which emerges from an ion-exchange column. ELECTRIC DEFROSTING - Use of electric resistance heating coils to melt ice and frost off evaporators during defrosting. ELECTRICAL CIRCUIT - A power supply, a load, and a path for current flow are the minimum requirements for an electrical circuit. ELECTROCHEMICAL REACTIONS - A metal wasting process, due to the fluid (boiler water) being subjected to an electrical current.

CORROSION, CREVICE - Localized corrosion of a metal surface at, or immediately adjacent to an area that is shielded from full exposure to the environment because of close proximity between metal and the surface of another metal. CORROSION, DEACTIVASION - The process of prior removal of the active corrosive constituents, usually oxygen, from a corrosive liquid by controlled corrosion of expendable metal or by other chemical means, therby making the liquids less corrosive. CORROSION, DEPOSIT (also called poultice corrosion) - Corrosion occuring under or around a discontinous deposit on a metallic surface.

CHILLER/HEATERS - A unit that supplies either chilled water for cooling or hot water for heating, (HVAC). CHLORIDE - An ion, compound, or salt of chlorine, such as sodium chloride (NaCl) or calcium chloride (CaCl2). CHLORINATION - A process in which chlorine gas or other chlorine compounds are added to the water for the purpose of disinfecting. CHOKE TUBE - Throttling device used to maintain correct pressure difference between high-side and low-side in refrigerating mechanism. Capillary tubes are sometimes called choke tubes.

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The Chemical Activity of the Ions of Hydrochloric Acid Determined by Electromotive Force Measurements by Ellis J. H.


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