Question

why is carboxymethyl cellulose added while making detergent powder

Answer 1

carboxymethy cellulose is used in washing mainly to prevent the remove dirt by detergents from re- deposition on the fabric.
furthermore, adding carboxymethyl cellulose in the production of detergents can have effective thickening effects on the detergents slurry and liquid soap, as well as can stabilize the structure of components.