Question

Why is sodium chloride prepared by the method of titration and not crystallization

Answer 1

Explanation:

Add the correct volume of sodium hydroxide from the burette. This will give a clear colourless solution containing only sodium chloride dissolved in water. Evaporate some of the liquid using a Bunsen burner, tripod, gauze and a evaporating bowl, and leave to crystallize for a few days.

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Answer 2

Answer:

Crystallization from saturated solutions is driven by changes in the free energy8, and that is the reason why it is sensible to processes involving electric discharges in liquids. In fact, some of the physical and chemical processes avaible in the plasma-liquid interface were already studied to induce or assist crystallization, as UV9, solvated electrons10 and electric fields11,12.

The production of table salt from the solar evaporation of seawater discharges, generally at the ocean, a concentrated saline effluent13. It happens mostly because there are not viable alternatives to separate the sodium chloride from the other compounds in this brine, as magnesium chloride, potassium chloride, and sodium bromide14.