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A caustic basic solution is produced, called lye water. Then, the lye water would either be used as such, as for curing olives before brining them, or be evaporated of water to produce crystalline lye. [1] [2] Today, lye is commercially manufactured using a membrane cell chloralkali process.
Sodium hydroxide is frequently used as an industrial cleaning agent where it is often called "caustic". It is added to water, heated, and then used to clean process equipment, storage tanks, etc. It can dissolve grease, oils, fats and protein-based deposits. It is also used for cleaning waste discharge pipes under sinks and drains in domestic ...
Similarly to the membrane cell, chloride ions are oxidized at the anode to produce chlorine, and at the cathode, water is split into caustic soda and hydrogen. The diaphragm prevents the reaction of the caustic soda with the chlorine. A diluted caustic brine leaves the cell. The caustic soda must usually be concentrated to 50% and the salt removed.
The first step in that process is to treat almost-pure cellulose (cotton linters or dissolving pulp) with strong (17-20% w/w) solutions of sodium hydroxide (caustic soda) in water. One effect of that step is to dissolve the hemicelluloses (low-MW polymers). In some circumstances, it is desirable to remove as much hemicellulose as possible out ...
Sodium carbonate can be extracted from this mixture by washing the mixture with water. [2] Until the rise of the ammonia-soda process, which has better economics, the Leblanc process was used extensively making the United Kingdom the lead in alkali production. By the early 20th century, the UK's production outstripped that of all other ...
The amount can vary depending on the volume of water, but approximately one cup per gallon is a general guideline. Mix the water and baking soda thoroughly, ensuring the baking soda is well dissolved.
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