The Solvay Process is a chemical process used to produce soda ash, also known as sodium carbonate or Na2CO3. Some synonyms for the Solvay Process include ammonium-soda process, ammonia-soda process, and Solvay ammonium process. These terms all refer to the same process used to create soda ash via a series of chemical reactions involving ammonia, carbon dioxide, and sodium chloride. Other common synonyms for soda ash include washing soda, soda crystals, and sal soda. The Solvay Process is a significant industrial process used worldwide to produce soda ash, which is used in a variety of industries including detergents, glass, and paper production.