The Chemical Dissolution of Soda-Lime Silicate for Safe Drinking Applications
نویسندگان
چکیده
To create a more cost effective glass while preserving its safety, the composition of soda-lime silicate glass was modified. The amount of Silicon dioxide in the composition was decreased in order to lower the melting point of the glass, thus making the new glass more cost-effective due to lower energy consumption. Calcium oxide and sodium oxide concentrations were increased to raise chemical durability and lower the melting temperature respectively. The glass was crushed and poured into 500 mL of each Pepsi Cola, Arizona Iced Tea, and tap water: three common beverages that vary in pH. The glass composition was then analyzed through pH changes, Fouriertransform infrared spectrometry (FTIR), and mass loss. It was found that less than 10% of glass mass was dissolved in each of the three beverages. The pH values showed that the glass caused the beverages to turn basic, while the control groups turned acidic, with the exception of tap water. FTIR analysis demonstrated that the mass loss was mainly Silicon and oxygen. Thus, this composition of soda-lime silicate glass composition is a cost-efficient, alternative method to industrial glass.
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