Definition - What does Peptisation mean?

Peptisation is the process which is the primary cause for the formation of colloidal particles in dispersion medium. It requires an electrolyte known as peptizing agent for the completion of the process. It plays a vital role for understanding precipitation reactions that occur in aqueous solution. It has a number of uses:

  • It can be used in nano particle synthesis.
  • It can be used to split large grouping into smaller particles.
  • It is used for synthesizing Titania.
  • It helps in filtrating colloidal solution.

Petropedia explains Peptisation

In simple words, Peptisation process occurs when there is the presence of an electrolyte. The process basically involves the conversion of precipitates into colloidal solutions with the help of the electrolyte. This happens due to the preferential adsorption of the ions present in the electrolyte. As a result, the particles absorb the same charge depending on the charge of the ion. The main role is to bring back the coagulated colloidal solution to a stable disperse rate. Moreover, it disperses fine particles of one substance equally between the solution and the suspension.

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