An antitranspirant is

Solution (By Examveda Team)

An antitranspirant is Phenyl mercuric acetate.
Phenylmercuric acetate is an organomercury compound used as a preservative, disinfectant, and antitranspirant.
It is an organomercury compound used as a preservative, disinfectant, and antitranspirant. It kills crabgrass, the seedlings of which are especially vulnerable, but leaves most lawn grasses intact.