Preparation of Kaolin Mixture

Aim: To prepare and submit 100 ml of Kaolin mixture. 

Requirements: Mortar and pestle, Beaker, Glass rod, Light kaolin, Light magnesium carbonate, Sodium bicarbonate, and Peppermint emulsion. 

Theory: Mixtures are liquid oral preparations meant for internal or external use which contain medicament either dissolved or dispersed or suspended. In a kaolin mixture kaolin is a suspending agent. Peppermint emulsion is the vehicle as well as a flavoring agent. Sodium carbonate is an antacid and magnesium carbonate is a drying agent. 


IngredientsStandard formula
Light kaolin2 gm
Magnesium carbonate0.5 gm 
Sodium bicarbonate0.5 gm 
Peppermint emulsion100 ml 


  1. Mix all the insoluble materials (magnesium carbonate, light kaolin, sodium carbonate) in a pestle and mortar. 
  2. Take three fourth of the vehicle (peppermint emulsion) and add it to the above mixture. 
  3. Triturate and prepare a paste. 
  4. After the paste is prepared, make up the volume up to 100 ml with peppermint emulsion. 

Category: Antidiarrheal. 

Storage: Store in a well-closed container and keep in a cool place. 


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