caustic soda with good quality CAS No.1310-73-2Physicochemical ... melting point :318.4,boiling point:1390, crispy. Pure solid caustic soda appear white, block ,flake, bead , easily soluble in ... glass ,ceramic ,etc.Applications and UsagesIt is used for making chemicals, the paper, soap and detergent, artificial silk and cellophane, ... ,tough with acid, prevent from impact in transporting. Caustic Soda