MOLTEN SALT FOR USE IN TOUGHENING GLASS, PRODUCTION METHOD OF TOUGHENED GLASS, AND LIFE EXTENSION METHOD OF MOLTEN SALT FOR USE IN TOUGHENING GLASS

摘要

PROBLEM TO BE SOLVED: To provide a molten salt with a well-extended use life, with respect to a molten salt containing potassium nitrate used for chemically toughening glass.;SOLUTION: This molten salt for use in toughening glass is used for forming a compressive stress layer on a glass surface by means of ion exchange, contains potassium nitrate and further contains carbonate anions and/or phosphate anions.;COPYRIGHT: (C)2015,JPO&INPIT