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Older clear-glass Pyrex manufactured by Corning, Arc International's Pyrex products, and Pyrex laboratory glassware are made of borosilicate glass. According to the National Institute of Standards and Technology , borosilicate Pyrex is composed of (as percentage of weight): 4.0% boron , 54.0% oxygen , 2.8% sodium , 1.1% aluminum , 37.7% silicon ...
In 1966 Pyrex 7740 had a composition of about 80.6% SiO 2, 13% B 2 O 3, 4.3% Na 2 O and 2.1% Al 2 O 3. [75] Similar glasses have a coefficient of linear expansion of about 3 parts per million per Kelvin at 20°Celsius. [78] Density [Pyrex 774] ≈ 2.210 g ⋅ cm −3 at 32 °F.
Grab-it is a brand of Corning Ware cookware products easily identifiable by their uniform distinctive shape: a bowl with vertical sides and a rounded, concave tab handle. . The name was first used for a versatile product which could safely go from refrigerator to stovetop, oven, broiler, or microwave, but later, inferior products, nearly identical in appearance but unsafe for stovetop or ...
Soda–lime glass (for containers) [2] Borosilicate (low expansion, similar to Pyrex, Duran) Glass wool (for thermal insulation) Special optical glass (similar to Lead crystal) Fused silica Germania glass Germanium selenide glass Chemical composition, wt% 74 SiO 2, 13 Na 2 O, 10.5 CaO, 1.3 Al 2 O 3, 0.3 K 2 O, 0.2 SO 3, 0.2 MgO, 0.01 TiO 2, 0. ...
Although Pyrex's metal bakeware is now made abroad, the oven-safe lidded glassware used to preserve many a leftover meal is still made at the factory in Charleroi, Pennsylvania.
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass.
Since Pyrex rewarded both sides of this saga with food storage, and both parties went viral elsewhere on the internet, there have been more developments in the story. The pair has posted a trio of ...
Online shoppers who bought certain Pyrex measuring cups in recent years may be eligible for a refund. The Federal Trade Commission announced it is issuing a total of $88,000 in refunds to ...
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