Pyrex Test Tubes

Pyrex test tubes are a unique type of glass test tubes that are particularly resistant to chemicals, heat and electricity. When exposed to particularly high temperatures, compared to typical glass test tubes they will expand only about one third as much. Consequently, it is much less likely to then break under such a condition. 

Typically Pyrex test tubes are used to store or mix small quantities of liquids or solids that are particularly corrosive, or will reach very high temperatures. A portion of the content could be removed and placed on a slide and examined under a microscope, or combined with the contents of another test tube as part of an experiment. 

The actual experiment could take place in one of the test tubes, combining the contents from two, three or more sources. If the combination of such chemicals would be particularly corrosive, or they would be needed to a very high temperature, Pyrex test tubes would be specifically appropriate as they are constructed to significantly more resist corrosion and breakage from high temperatures. 

As with most any other test tubes, Pyrex test tubes are extremely efficient and practical in their design, which is tube-like with straight sidewalls from top to bottom, which minimizes content loss when pouring. Pyrex test tubes are also available in a variety of tinted colors for easy identification. If you purchase tinted Pyrex test tubes, be sure that their transparent enough to easily view the contents. 

Pyrex test tubes are widely used in laboratories when heat and corrosion resistance are a prime concern, whether in a modest high school laboratory or elaborate college or corporate lab. The cost is somewhat higher, though not prohibitive, and considering the preservation of the contents, especially if bought in bulk, Pyrex test tubes are virtually indispensable.