Question

Define peptisation and give examples?​

Answer 1

For example, clay will normally fall out of solution in water, forming a precipitate, but by using sodium carbonate as a peptizingagent clay can form a colloid with water.
Peptization or Deflocculation is the process responsible for the formation of stable dispersion of colloidal particles in dispersion medium. In other words it may be defined as a process of converting a precipitate into colloidal sol by shaking it with dispersion medium in the presence of small amount of electrolyte.

Answer 2

Peptization is the formation of a colloid by breaking up a precipitate using an electrolyte (peptizing agent) to disperse into a colloid. For example, clay will normally fall out of solution in water, forming a precipitate, but by using sodium carbonate as a peptizing agent clay can form a colloid with water.