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Corning® PYREX® Glassware

Corning's first PYREX catalog in 1915 only had flasks and beakers.

Of the hundreds of commercial glasses produced, PYREX low expansion borosilicate Type one glasses comes closest to being the ideal glass for most laboratory applications.

With proper care, they will withstand nearly all temperatures used in normal laboratory use. They are highly resistant to chemical attack. Their low coefficient of expansion allows them to be manufactured with heavy walls, giving them mechanical strength, while retaining good heat resistance.

Corning offers four borosilicate Type 1 glasses in their PYREX Brand glassware:

• Code 7740 glass, the original PYREX glass used for most chemistry glassware. This was the glass used to construct the mirror for the 200 inch Hale telescope on Mount Palomar
• Actinic red Code 7740 glass, contains a red ultraviolet shielding stain fired on to the exterior surface
• Code 7789 glass, is used primarily for bottles
• Code 7800 glass, with a slightly higher expansion rate than the previous glasses, is used primarily for pipets

Check our Glassware Technical Information for the characteristics and properties of these PYREX glasses.

Click here to learn more about PYREX products in our Product Catalog

Links to Technical Information

• Description Of Glasses Used In Corning Labware
• Safety Features And Benefits Of Corning Glasses
• Thermal Properties Of Glasses Used In Corning Labware
• Description Of Glasses Used In Corning Labware
• Guide To Selecting And Using Fritted Glassware