Aim: To prepare and submit 1g of explosive powder
Apparatus required:
- Pestle and mortar
Formula :
| Ingredients | Official Formula | Working Formula |
|---|---|---|
| Potassium chlorate | 10g | 500mg |
| Tannic acid | 5g | 250mg |
| Sucrose | 5g | 250mg |
Principle:
Trituration of oxidizing agent with reducing agent result in violent explosion. To avoid explosion it is advised to adopt spatulation or tumbling during mixing as there will not be friction between the solids. Here potassium chlorate is the oxodizing agent and tannic acid is the reducing agent. Other potential explosive materials are sodium peroxide, potassium nitrate, potassium dichromate( oxidizing agents)sulphur, sulphides and charcoal (reducing agent)
Both potassium chlorate and tannic acid are antiseptic and astringent. They are used in oral cavity for treating stomatitis, pharyngitis, tonsillitis and ulcerative lesions of oral cavity. They are found in tooth paste, gargle and mouthwashes. Sucrose acts as sweetening agent. This powder formulation can be mixed with water and be used as gargle in the above said conditions.
Procedure:
- Mix in excess potassium chlorate and tannic acid in a mortar with little pressure/by spatulation on a butter paper
- Add sucrose to the above mixture and mix well
- Weigh 1g of blend and pack by double wrap technique
- Dispense in a labeled envelop
- Discard the excess powder blend
Category: Antiseptic and astringent
Storage: Store in cool and dry place
Direction: Add the powder in a glass of warm water and use as gargle.
Report: 1g of explosive powder was prepared and submitted.
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