Definitions for "Borosilicate glass"
Keywords:  boric, schott, pyrex, otto, glassmaker
A type of glass containing at least 5 wt % boric oxide. It is used in glassware that resists heat and is a leading candidate for use in high-level waste immobilization and disposal.
An optical glass containing boric oxide, along with silica and other ingredients, having relatively high -value and low index of refraction. Some varieties, such as Corning Pyrex® and Schott Tempax®, are resistant to thermal shock.
A strong heat-resistant glass, borosilicate contains a minimum of 5 percent boric oxide, and was first developed by the German glassmaker Otto Schott in the late 1800s. Because of its ability to withstand a wide range of temperature variations, borosilicate glass is the glass of choice for cookware and refrigeration applications. Pyrex is one of the most famous brand names for a borosilicate formulation. At Oceana, we have developed our own, unique formula for this durable glass, which we call “Hard Roc” glass.