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Pyrex (trademarked as PYREX and pyrex) is a brand introduced by Corning Inc. in 1915, initially for a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware. It was later expanded in the 1930s to include kitchenware products made of soda–lime glass and other materials. [1]
After Corning Glass Works introduced Pyrex in 1915, the name became synonymous with borosilicate glass in the English-speaking world (since the 1940s, a sizable portion of glass produced under the Pyrex brand has also been made of soda–lime glass). Borosilicate glass is the name of a glass family with various members tailored to completely ...
The manufacturing process for soda–lime glass consists in melting the raw materials, which are the silica, soda (Na 2 O), hydrated lime (Ca(OH) 2), dolomite (CaMg(CO 3) 2, which provides the magnesium oxide), and aluminium oxide; along with small quantities of fining agents (e.g., sodium sulfate (Na 2 SO 4), sodium chloride (NaCl), etc.) in a glass furnace at temperatures locally up to 1675 ...
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Made of ultra-durable borosilicate, these airtight vessels are leakproof and built to last, users say. Get 'em for under $3 a pop. Save 55% on these glass food storage containers: 'I like them ...
A Pyrex borosilicate glass measuring cup. Borosilicate glasses (e.g. Pyrex, Duran) typically contain 5–13% boron trioxide (B 2 O 3). [75] Borosilicate glasses have fairly low coefficients of thermal expansion (7740 Pyrex CTE is 3.25 × 10 −6 /°C [78] as compared to about 9 × 10 −6 /°C for a typical soda–lime glass [79]).
1) Clear soda is better for you than dark soda - FALSE In reality, one of the only differences between clear and dark soft drinks is that the clear ones don't usually contain caffeine, but the ...
Due to its high thermal shock resistance, Corning Ware could be used to store food in a freezer and then taken directly to a stove, placed under a broiler or in an oven (both conventional and microwave). Lids have typically been made out of Pyrex (both Borosilicate and Soda-lime glass) though some versions were also created out of Pyroceram. It ...