Question

What is the color of Aluminium Sulfate when it is added to water?

Answer 1

Aluminum sulfate

• The chemical formula for Aluminum sulfate is ${\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3$.
• The color of aluminum sulfate is white in its anhydrous form.
• The reaction is as follows:-
• $$\begin{gathered} {\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3\left(\mathrm{s}\right)+6{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\to 2\mathrm{Al}{\left(\mathrm{OH}\right)}_3\left(\mathrm{s}\right)+3{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{l}\right) \\ \mathrm{Aluminium}\mathrm{sulfate}\mathrm{Aluminum}\mathrm{hydroxide}\mathrm{Sulfuric}\mathrm{acid} \end{gathered}$$

Color of Aluminium Sulfate when it is added to water

• Aluminum sulfate on hydrolysis becomes colorless.
• So, the color of Aluminium Sulfate when it is added to water is colorless.