Used in glass manufacturing as a flux to lower the melting temperature of silica, making the production process more energy-efficient. Commonly employed in water treatment to adjust pH levels and soften water by removing calcium and magnesium ions. Found in detergents and cleaning agents for its ability to neutralize acids and suspend dirt particles. Utilized in the pulp and paper industry during chemical pulping to maintain alkaline conditions. Also applied in the production of chemicals such as sodium silicates and phosphates.