Perform an activity to obtain colored components or dye from a blue or black dye by the process of evaporation.
Defining evaporation
The process of obtaining a non-volatile soluble solid from its solution by allowing the liquid component to vaporize is called evaporation.
Activity
To obtain colored components or dye from a blue or black dye by the process of evaporation.
Procedure
Observation
On heating, the liquid in the watch glass evaporates. In a dry state, a residue will be left on the watch glass. Evaporation can be used to separate the volatile component (solvent) from its non-volatile solute. A dye is mixed with water to make ink.
Conclusion
We can deduce from this behavior that ink is a mixture of dye and water rather than a single material.