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Chemical Process - Engineering

Q1:

Yellow glycerine is made into white, using

A activated carbon

B diatomaceous earth

C bauxite

D bentonite

ANS:A - activated carbon

Yellow glycerine is made into white using activated carbon. Yellow glycerine is made into white using activated carbon for several reasons:

1. Adsorption Properties:

  • Impurity Removal: Activated carbon has a high surface area and porous structure, allowing it to effectively adsorb impurities, color compounds, and contaminants present in yellow glycerine.

2. Decolorization Process:

  • Color Elimination: During the treatment process, yellow glycerine is passed through activated carbon filters or columns, where the carbon adsorbs colorants and other unwanted substances, resulting in a clearer, colorless product.

3. Chemical Stability:

  • Non-reactive Nature: Activated carbon is chemically stable and does not react with glycerine, ensuring that the purity and quality of the glycerine are maintained during the decolorization process.

4. Cost-effective:

  • Economical Solution: Using activated carbon for decolorization is a cost-effective method compared to other chemical treatments, making it a preferred choice in the industry.

Summary:

In summary, yellow glycerine is made into white using activated carbon due to its excellent adsorption properties, ability to remove impurities and colorants, chemical stability, and cost-effectiveness, resulting in a higher quality, colorless glycerine product.