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The chloralkali process (also chlor-alkali and chlor alkali) is an industrial process for the electrolysis of sodium chloride (NaCl) solutions. It is the technology used to produce chlorine and sodium hydroxide (caustic soda), [ 1] which are commodity chemicals required by industry. Thirty five million tons of chlorine were prepared by this ...
Sodium chloride / ˌ s oʊ d i ə m ˈ k l ɔːr aɪ d /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic , and occurs as the mineral halite .
The process of electrochlorination is a simple application based on the chloralkali process (in an unpartitioned cell). It is the electrolysis of saltwater to produce a chlorinated solution. The first step is removing any solids from the saltwater. Next, the saltwater streams through an electrolyzer cell's channel of decreasing thickness.
Chlorine can be manufactured by the electrolysis of a sodium chloride solution ( brine ), which is known as the Chloralkali process. The production of chlorine results in the co-products caustic soda ( sodium hydroxide, NaOH) and hydrogen gas (H 2 ). These two products, as well as chlorine itself, are highly reactive.
Castner–Kellner process. The Castner–Kellner process is a method of electrolysis on an aqueous alkali chloride solution (usually sodium chloride solution) to produce the corresponding alkali hydroxide, [ 1] invented by American Hamilton Castner and Austrian Carl Kellner in the 1890s. [ 2][ 3] Due to lower energy cost and fewer environmental ...
Boiling-point elevation. Boiling-point elevation is the phenomenon whereby the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water.
Diagram of a downs cell electrolyzing molten NaCl into chlorine gas and sodium metal. Downs' process is an electrochemical method for the commercial preparation of metallic sodium, in which molten NaCl is electrolyzed in a special apparatus called the Downs cell. The Downs cell was invented in 1923 (patented: 1924) by the American chemist James ...
Salting out. Salting out (also known as salt-induced precipitation, salt fractionation, anti-solvent crystallization, precipitation crystallization, or drowning out) [ 1] is a purification technique that utilizes the reduced solubility of certain molecules in a solution of very high ionic strength. Salting out is typically used to precipitate ...