what is the difference between soda lime glass and borosilicate glass ?

Borosilicate glass and soda lime glass are two different types of glass with distinct properties. Here are the main differences between them:

1. Composition: Borosilicate glass is composed of silica and boron trioxide, while soda lime glass is primarily made of silica, sodium oxide, and calcium oxide.

borosilicate-glass

2. Thermal Resistance: Borosilicate glass has a much higher thermal resistance compared to soda lime glass. It can withstand rapid temperature changes without cracking or shattering. This property makes it suitable for laboratory glassware, cookware, and high-temperature applications. Soda lime glass, on the other hand, has lower thermal resistance and can break when exposed to sudden temperature variations.

3. Strength: Borosilicate glass is generally stronger and more resistant to impact than soda lime glass. It is less prone to breakage, making it a preferred choice for applications where durability is important, such as in scientific equipment and industrial settings. Soda lime glass is more prone to breakage and is commonly used in windows, bottles, and household glassware.
sight-glass

4. Optical Clarity: Borosilicate glass has higher optical clarity and transparency compared to soda lime glass. It allows more light to pass through, making it suitable for applications such as high-quality lenses, telescopes, and optical instruments. Soda lime glass is less optically clear and may have slight greenish tint.

5. Chemical Resistance: Borosilicate glass has excellent chemical resistance and is resistant to corrosion from most chemicals, acids, and solvents. It is commonly used in laboratory and chemical applications. Soda lime glass has moderate chemical resistance and may be susceptible to corrosion from certain chemicals.

Overall, borosilicate glass is known for its high thermal resistance, strength, and chemical resistance, while soda lime glass is more commonly used for everyday glassware and applications where these properties are not critical.