Which one among the following is the major constituent of soda lime glass?

Soda-lime glass, also known as soda-lime-silica glass, is the most common type of glass used for window panes and containers [2]. It is primarily composed of three main ingredients: silica (silicon dioxide), soda (sodium oxide), and lime (calcium oxide). Among these, silica (SiO2) is the major constituent and primary glass-forming component, typically making up approximately 70% to 75% of the total composition. Soda (sodium oxide), derived from soda ash, acts as a flux to lower the melting point, while lime (calcium oxide), derived from limestone, provides chemical durability and stability [1]. While sodium oxide and calcium oxide are essential additives, silica remains the fundamental structural backbone and the largest single component by weight in the glass batch [1].

Sources

1. [2] https://en.wikipedia.org/wiki/Soda%E2%80%93lime_glass
2. [1] https://www.sciencedirect.com/topics/engineering/glass-batch