Chemistry

Comparative study of the structure and durability of commercial silicate glasses for food consumption and cosmetic packaging

L. Brunswic, F. Angeli, et al.

This groundbreaking research explores how four different commercial silicate glasses alter under acidic conditions over three years. Through advanced analyses, it was discovered that glass composition significantly affects alteration rates and element depletion. The research was conducted by Léa Brunswic, Frédéric Angeli, Thibault Charpentier, Stéphane Gin, Pierre Asplanato, Huseyin Kaya, and Seong H. Kim.

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Abstract

This research presents a comparative study on the alteration of four commercial silicate glasses (lead crystal, barium glass, soda-lime glass, and borosilicate glass) under acidic conditions (4% acetic acid, pH 2.4, 70°C) for three years. The study analyzed leaching solutions via ICP-AES and investigated glass slabs using ToF-SIMS and spectroscopic ellipsometry. Results indicate that glass composition and silicate network polymerization significantly affect alteration rates and element depletion depths. However, the silicon hydrolysis rate remained consistent across all glasses under identical conditions. Lead crystal glass showed silicate network repolymerization during alteration.

Publisher

npj Materials Degradation

Published On

Aug 17, 2024

Authors

Léa Brunswic, Frédéric Angeli, Thibault Charpentier, Stéphane Gin, Pierre Asplanato, Huseyin Kaya, Seong H. Kim

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