Borosilicate glass

Uncommon card · No. 82408

Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. The glass has numerous advantages over regular soda–lime glass, including being harder to break when dropped, more resistant to cracking from significant changes in temperature, and having a higher clarity (transparency), which is maintained over a longer period of time. Borosilicate is generally slightly more expensive than soda–lime glass. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10−6 K−1 at 20 °C), making them more resistant to thermal shock than any other common glass. Such glass is subjected to less thermal stress and can withstand temperature differentials of about 330 °F (166 °C) without fracturing. It is commonly used for the construction of reagent bottles and flasks, as well as many other applications. Borosilicate glass is sold under various trade names, including Borosil, Duran, Pyrex, BSA 60, BSC 51 (by NIPRO), Schott...

Read on Wikipedia · Image Pyrex, Public domain