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1. Put the mixture in a bottle containing hot water. 2. Stir vigourously. 3. Filter the mixture on filter paper, medium pores. 4. The charcoal powder remain on the filter, the salt in solution.
to seprate solube substance
One can easily confirm the presence of charcoal powder in Mno2 by heating on a charcoal block
so in charcoal powder it could be used,especially if you are in the place which are not easily getting materials like in a rural place, so in that case the charcoal powder is used in getting fingerprint impression.
no
Charcoal for one
Activated Charcoal powder
Charcoal and saltpeter (if you mean black powder)
To make polish out of charcoal, grind charcoal into a fine powder. Mix the charcoal powder with a binding agent like wax or oil to create a paste. Apply the paste to the surface you want to polish, then buff it off to reveal a shiny finish.
It depends on the solvent
Salt Petere (Potassium Nitrate), Charcoal, and Sulfer