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Gunpowder is a mixture of nitre (potassium nitrate) , sulpher and charcoal

Name of the method- filteration , evaporation and solvent extraction.

Steps-

1) Put the constituents in water. nitre will dissolve in water.

2) Filter the soln.

Filterate- water+nitre

Residue - sulpher+charcoal

3) Perform evaporation on the filterate.

Water will evaporate leaving nitre.

Solvent extraction-

4) Put the residue in carbon disulphide.

Sulpher will dissolve in this soln.

5) Filter the soln.

Filterate-carbon disulphide+sulpher

Residue- charcoal

6) Perform evapooration on the filterate.

carbon disulphide evaporates leaving sulpher.

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15y ago

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