Container glass
{{Short description|Type of glass used for glass containers}}
{{Infobox material
| name = Container glass
| image =
| image_size =
| caption =
| type = Soda-lime glass
| composition = Silica, soda, lime
| uses = Bottles, jars, containers
| properties = Transparency, durability, chemical resistance
| production = Blown, pressed, molded
| recycling = Highly recyclable, high percentage of recycled content
}}
File:Soviet mayones jar 250 ml.jpg
Container glass is a type of glass for the production of glass containers, such as bottles, jars, drinkware, and bowls. Container glass stands in contrast to flat glass (used for windows, glass doors, transparent walls, windshields) and glass fiber (used for thermal insulation, in fiberglass composites, and optical communication).
Composition
Container glass has a lower magnesium oxide and sodium oxide content than flat glass, and a higher silica, calcium oxide, and aluminum oxide content."High temperature glass melt property database for process modeling"; Eds.: Thomas P. Seward III and Terese Vascott; The American Ceramic Society, Westerville, Ohio, 2005, {{ISBN|1-57498-225-7}} Its higher content of water-insoluble oxides imparts slightly higher chemical durability against water, which is required for storage of beverages and food.
Most container glass is soda-lime glass, produced by blowing and pressing techniques, while some laboratory glassware is made from borosilicate glass.
Glass containers
Container glass is used in the following: