Tags: Chemical Compound, Chemical Substance.
Trichloroacetic acid (TCA; TCAA; also known as trichloroethanoic acid) is an analogue of acetic acid in which the three hydrogen atoms of the methyl group have all been replaced by chlorine atoms.It is prepared by the reaction of chlorine with acetic acid in the presence of a suitable catalyst.CH3COOH + 3Cl2 → CCl3COOH +3HClIt is widely used in biochemistry for the precipitation of macromolecules such as proteins DNA and RNA. Its sodium salt is used as a weedkiller.
