Question

write the mathod of preparation of nacl ? write the properties and use​

Answer 1

Answer:

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Preparation: Salt is produced on large scales by evaporation of sea water or the salt water (brine) from salt lakes and brine wells. As seawater contains several other salts (of calcium, magnesium and other elements), the evaporation process is carried out carefully so that the different salts precipitate out at different times based on their solubility. Another major production method is by mining the rock salt reserves.

properties:Sodium chloride is a white crystalline solid with a density of 2.16 g/mL, and a melting point of 801 °C. It is also available as aqueous solutions of different concentrations, called saline solutions.

use:Sodium chloride is best known as table salt and is used widely in the food industry for flavoring and preservation. It is also used in the production of many important chemicals, including sodium hydroxide, sodium carbonate, baking soda, hydrochloric acid, etc. It also has applications in oil refineries, textiles industry, paper and pulp industry, fire-retardants, rubber industry and in road constructions. Another important use is the de-icing of roads and sidewalks in cold and snowy regions. Saline solutions are used for many medical purposes too.

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