Ground Glass Joint

Ground Glass Joint

Ground glass joints are used in laboratories to quickly and easily fit leak-tight apparatus together from commonly available parts. For example, a round bottom flask, Liebig condenser, and oil bubbler with ground glass joints may be rapidly fitted together to reflux a reaction mixture. This is a large improvement compared with older methods of custom-made glassware, which was time-consuming and expensive, or the use of less chemical resistant and heat resistant corks or rubber bungs and glass tubes as joints, which took time to prepare as well.

To connect the hollow inner spaces of the glassware components, ground glass joints are hollow on the inside and open at the ends, except for stoppers.

Read more about Ground Glass Joint:  History, Joint Types, Hermetic Sealing, Frozen Joints

Famous quotes containing the words ground, glass and/or joint:

    Any historian of the literature of the modern age will take virtually for granted the adversary intention, the actually subversive intention, that characterizes modern writing—he will perceive its clear purpose of detaching the reader from the habits of thought and feeling that the larger culture imposes, of giving him a ground and a vantage point from which to judge and condemn, and perhaps revise, the culture that produces him.
    Lionel Trilling (1905–1975)

    The glass has been falling all the afternoon
    Adrienne Rich (b. 1929)

    I learned from the git-go in the joint to get in touch with the soft, nurturing side of myself, the feminine side.
    Wesley Strick, U.S. screenwriter, and Martin Scorsese. Max Cady (Robert DeNiro)