Chemical pulping is a process used to convert wood into pulp, which is then used to make paper. This method involves using chemicals, typically sodium hydroxide and sodium sulfide, to break down the lignin that binds cellulose fibers together in the wood. The result is a slurry of cellulose fibers that can be further processed into paper products. There are two main types of chemical pulping: kraft pulping and sulfite pulping. Kraft pulping is the most common method, known for producing strong pulp, while sulfite pulping uses different chemicals and is often used for producing lighter-colored papers. Both methods aim to maximize fiber yield and minimize environmental impact.