Question

How Is $\mathrm{Sodium}\mathrm{Hydroxide}$ Manufactured In Industries?

Answer 1

1. The manufacturing of $\mathrm{NaOH}$ in industries.
2. $\mathrm{Chlor}-\mathrm{alkali}$ process - On the passage of electricity from brine solution, $\mathrm{Sodium}\mathrm{Hydroxide}$ is formed with $\mathrm{chlorine}$and water as by-products
3. $$\begin{gathered} 2\mathrm{NaCl}\left(\mathrm{aq}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\stackrel{\mathrm{Electrolyzed}}{\to }2\mathrm{NaOH}\left(\mathrm{aq}\right)+{\mathrm{Cl}}_2\left(\mathrm{g}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right) \\ \mathrm{Sodium}\mathrm{chloride}\mathrm{Water}\mathrm{Sodium}\mathrm{hydroxide}\mathrm{Chlorine}\mathrm{gas}\mathrm{Hydrogen} \end{gathered}$$

Thus, $\mathrm{Sodium}\mathrm{Hydroxide}$ can be prepared.