Chemistry carafe 500ml pyrex

Chemical carafe 500ml of the brand pyrex. Opening diameter 3 cm. Littleton, the wife of physicist jessie littleton, an engineer at corning, is at the origin of the birth of the brand. Her experience of broken dishes after a single passage in the oven, pushes her to ask her husband for the bottom of borosilicate glass vats. It's a success! All that is missing is one name to exist with the public. We think of "pyright", since its first application is a cake mold (flat pie). It is quickly transformed into pyrex, to rhyme with nonex which is the name of the formula of borosilicate glass.