Question

Cyclohexanol is oxidized by a mixture of sodium hypochlorite and acetic acid. The solution is treated with sodium bisulfite and sodium hydroxide, before the product is extracted into dichloromethane. The organic layer was dried over potassium carbonate, decanted, and the product was obtained when the solvent was evaporated.

Drag and drop the chemical wastes generated in this reaction into the appropriate container.

Answer 1

Concepts and reason

Differentiate the type of waste generated during the synthesis of a chemical compound using several solvent and reacting species.

Fundamentals

Oxidation of cyclohexanol using sodium hypochlorite and acetic acid produces cyclohexanone.

The chemical synthesis requires few supporting chemicals and more than one by-product forms during the synthesis.

These chemicals are disposed or extracted from the product and are disposed of in suitable chemical containers.

Aqueous solutions produced during the reaction are disposed of in aqueous waste container.

Organic waste discarded in the non-halogenated organic waste container only.

Finally, any solid residue is discarded in solid waste container.

The chemical reaction for producing cyclohexanone from cyclohexanol is as follows:

The types of chemical species used in the synthesis are as follows:

Cyclohexanone, household bleach (NaOCl), acetic acid, hypochlorite (HOCl), cyclohexanol, water and NaCl.

Along with them a few chemicals are also added as follows:

DCM, sodium bisulphite solution, starch-iodine indicator paper and NaOH.

The chemical waste generated over the synthesis is categorised as follows:

Ans:

The chemical waste generated over the synthesis is categorised as follows: