Uses and Properties of Sodium Hydroxide

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Chemical Symbol: NaOH
What it means:
Sodium hydroxide is made up of sodium (Na), oxygen (O) and hydrogen (H). The chemical symbols for oxygen and hydrogen come from their names. Sodium’s chemical symbol, Na comes from the Latin word Natrium which means sodium carbonate.
What state we usually find it in and why:
Sodium hydroxide is an odourless, white crystal solid at room temperature. This is because sodium hydroxide has an ionic bond, meaning it has a high melting point, above room temperature. The solid is most commonly found as granules, chips, flakes, cubes, blocks or even as an aqueous solution, when dissolved in water, methanol or ethanol.
How we make it:
Sodium Hydroxide cannot be found naturally occurring on Earth and therefore, is manufactured. There are several different methods used to make sodium hydroxide. The first method is the Mercury Cell Process or the Castner-Kellener Process. This process is the most commonly used. A mixture with a mercury cathode is produced when sodium ions are reduced to sodium metal. Sodium hydroxide is then produced when dissolved in water. Another process is called Diaphragm Cell Process. This process involves a penetrable diaphragm is used to stop any reactions between sodium hydroxide and chlorine once the process is complete. The cathode is made from steel. Brine is put into the anode, where it is passed to the cathode, passing through the diaphragm to reach it. Diluted sodium hydroxide is produced through the reaction of the
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