Question

How can we obtain coloured component from blue or black ink by evaporation method?

Answer 1

Evaporation is a useful method to obtain coloured component (dye) from blue/black ink. Ink is a colloidal solution - a heterogeneous mixture of dye and water. When this mixture is heated, water evaporates and dye is left out.

Answer 2

Answer:

we can us the chromatography distillation technique