👉 Causticized refers to a substance that has been subjected to an acid or other chemical reaction, causing it to produce gas. This can occur when a substance reacts with water or another acid, and as a result, the substance is reduced and some of its properties are altered. For example, in a caustic reaction, one substance (the reactant) reacts with water (the product), producing carbon dioxide (a gas) and hydrogen. The reactant may be a solid, liquid