... tetraborate), also known as crude borax, is soft and light colorless crystalline substance.Borax(Sodium tetraborate) has many ... , preservative, water softener, wash water, soap additives, ceramic glaze and glass raw materials. Borax also have an important role ... white crystalline powder. Odorless, taste salty. Soluble in water and glycerine easily, slightly soluble in alcohol. Weakly alkaline aqueous ...