Caustic Soda Flake/Pearlescent 99% (CAS No.: 1310-73-2), chemically known as sodium hydroxide, is a high-purity, white flaky or pearlescent solid with strong alkalinity, excellent solubility in water, and high reactivity. As a foundational inorganic chemical, our product is manufactured via advanced ion-exchange membrane electrolysis technology—an eco-friendly and energy-efficient process widely adopted by leading Chinese chemical enterprises.