... alkaline aqueous solution with alkali all perforating. Purely solid caustic soda is white, there is massive, flakes, solid, and ... , aluminum smelting, refining tungsten, rayon and soap manufacturing. In addition, in the production of dyes, plastics, pharmaceutical and organic intermediates, ... is 25kg.Storage and transport: It should be stored in a dry, ventilative and clean warehouse; kept away from ...