Boric acid, also called boracic acid, is a weak, inorganic acid best known for its use as an antiseptic. It is used in dressings and salves for minor burns and cuts. However, boric acid should not be used to treat large wounds and is poisonous if swallowed. Industries use boric acid mainly as an ingredient in preparing other chemicals. It is also used in insecticides, leather finishing, paints, soaps, wood preserving, and in ceramics and glass manufacturing. Boric acid is prepared in the United States by treating borax with hydrochloric or sulfuric acid. It forms colorless, odorless crystals or a white powder that dissolves in water.
