👉 Lye is a chemical compound commonly used in the production of paper, paints, and other industrial processes. It is made by combining sodium hydroxide (H2O) with lime rock (CaCO3). The resulting solution is then mixed with water to form a yellowish-green liquid. Lye can be found in many household products such as cleaning supplies and laundry detergents, but it should never be ingested or used未经许可。