Non combustible, non toxic, so called water glass, soluble glass or liquid glass. For mixing with soap, anti-fire agents, cement hardener, and water softener, etc.
硅酸钠(水玻璃): 不可燃、无毒,所谓水玻璃、可溶性玻璃或液体玻璃。用于与肥皂、阻燃剂、水泥硬化剂、软水剂等混合使用。