How can we obtain a coloured component (dye) from blue/black ink?
(N/A) The coloured component (dye) can be obtained from blue or black ink using the process of evaporation.
$1$. Take a small amount of ink in a watch glass.
$2$. Place the watch glass on a beaker containing water and heat the beaker.
$3$. As the water boils,the steam heats the ink.
$4$. The solvent (water) evaporates,leaving behind the solid coloured component (dye) in the watch glass.
Note: Chromatography is used to separate different pigments present within the dye itself,but evaporation is the primary method to separate the dye from the solvent.
$1$. Take a small amount of ink in a watch glass.
$2$. Place the watch glass on a beaker containing water and heat the beaker.
$3$. As the water boils,the steam heats the ink.
$4$. The solvent (water) evaporates,leaving behind the solid coloured component (dye) in the watch glass.
Note: Chromatography is used to separate different pigments present within the dye itself,but evaporation is the primary method to separate the dye from the solvent.
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