Briefly explain how a colored solution may be decolorized.

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Briefly explain how a colored solution may be decolorized.

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Briefly explain how a colored solution may be decolorized.

Answer & Explanation (1)

Explanation
Reference

Cao, Y., Chen, X., Feng, S., Wan, Y., & Luo, J. (2020). Nanofiltration for decolorization: membrane fabrication, applications and challenges. Industrial & Engineering Chemistry Research, 59(45), 19858-19875.

Answer
The process of eliminating vividly colored organic contaminants from a sample combination is known as decolorization. After the solid product and contaminants have been dissolved in a suitable solvent, the method is normally carried out in the solution phase.

Decolorize your solution by adding a little amount of decolorizing carbon (activated charcoal) to the warm (NOT BOILING) sample solution with your micro spatula. Because activated charcoal has a large surface area, impurity molecules will bind themselves to it, eliminating these species from the solution. The carbon and contaminants are then removed using gravity filtration.

The process of removing color from carbon is called decolorization. Activated charcoal that has been finely divided and has a very big surface area, Polar, colored impurities adhere to its surface preferentially. If you use too much, your product will be absorbed.
The decolorizing carbon is dissolved in a hot, but not boiling, solution. This decolorizing carbon attracts polar, colored impurities, which bond to its surface preferentially.
Gravity Filtration is most typically used to remove particulates from liquids prior to crystallization, evaporation, or distillation, such as contaminants, decolorizing carbon, or drying agents.

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