Question

write an appropriate peptizing agent for precipitation of fe(OH) 3​

Answer 1

Answer:

Peptization takes place forming a positively charged colloidal sol of Fe(OH)3

Peptization is a process of passing of a precipitate into colloidal particles on adding suitable electrolyte. The electrolyte added is known as peptizing agent. A few examples of sols obtained by peptization are given below:

A reddish brown colored colloidal solution is obtained by adding small quantity of ferric chloride solution to the freshly precipitated ferric hydroxide.

Explanation:

Answer 2

Peptizing agent for precipitation of $Fe(OH)_3$ is​ Ferric Chloride, $FeCl_3$

Explanation:

   Peptization -

• This is the process of converting of freshly prepared precipitates of a substance into colloidal form in the presence of electrolyte called the peptizing agent
• Peptizing agent may be any dispersion medium or some other substance

Appropriate peptizing agent for precipitation of$Fe(OH)_3$ is​ ferric chloride,$FeCl_3.$

Precipitated ferric hydroxide is a reddish-brown colored colloidal solution.

A reddish-brown colored colloidal solution is obtained by adding a small quantity of ferric chloride solution to the freshly precipitated ferric hydroxide.