Chapter 15, Problem 23E

Interpretation Introduction

Interpretation:

How permanent curling of hair is accomplished is to be explained.

Concept Introduction:

Thioglycolic acid $\left(\text{TGA}\right)$ is an organic compound which consists of carboxylic acid and thiol functional group. The chemical formula of $\text{TGA}$ is ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}{\text{O}}_{\text{2}}\text{S}$. The derivatives of $\text{TGA}$ are used to break disulfide bond present in the protective layer of the hair.