It has high hydrolytic resistance, which is why it supports high temperatures and the repeated thermal stresses to which it is subjected. For this reason, glass flasks and balloons are manufactured with this material. Chemically, borosilicate glass is resistant to contact with water, the vast majority of acids, halogens, organic solvents and saline solutions. The chemical composition of Pyrex, its properties and the quality of the processes in its manufacture allow to summarize then the following properties: The following table summarizes the properties or general, mechanical, thermal and electrical characteristics attributed to Pyrex glass or borosilicate glass: Several manufacturers or suppliers of Pyrex glass have standardized the composition as specified below, also in units of percentage concentration p / p:Ĭharacteristics and properties of pyrex glass ![]() ![]() 2 Characteristics and properties of pyrex glassĪccording to the National Institute of Standards and Technology of the United States, all manufacturers of equipment and instruments Pyrex -such as Corning, the Arc Pyrex International and Pyrex laboratories- have in common that they manufacture it starting from a borosilicate glass that has the following elements Chemicals:.
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