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Message Subject Something Just Went BEZERK in the Gulf of Mexico. The US Navy just sunk a French Submarine
Poster Handle Anonymous Coward
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The European manufacturer of Pyrex, Arc International, uses borosilicate glass in its Pyrex glass kitchen products;[2] however, the U.S. manufacturer of Pyrex kitchenware uses tempered soda-lime glass.[3] Thus Pyrex can refer to either soda-lime glass or borosilicate glass when discussing kitchen glassware, while Pyrex, Bomex, Duran, TGI and Simax all refer to borosilicate glass when discussing laboratory glassware.

Though more difficult to make than traditional glass due to the high melting temperature required (Corning conducted a major revamp of their operations to make it), it is economical to produce. Its superior durability, chemical and heat resistance finds excellent use in chemical laboratory equipment, cookware, lighting and, in certain cases, windows.

While more resistant to thermal shock than other types of glass, borosilicate glass can still crack or shatter when subject to rapid or uneven temperature variations. When broken, borosilicate glass tends to crack into large pieces rather than shattering (it will snap rather than splinter).

Krispy wrote:

Ceramic use !!!
(Remember OP's mention of the substance in the briefcases, becomming light-weight ... and think of the canisters ... and the signal/beam from the Chinese Wall !!!)
The major industrial-scale uses of boron compounds are in sodium perborate bleaches, and the borax component of fiberglass insulation. Boron polymers and ceramics play specialized roles as high-strength lightweight structural and refractory materials. Boron compounds are used in silica-based glasses and ceramics to give them resistance to thermal shock.e:

Best we not give the Chinese too much credit for use of boron and sillica-based glass and ceramics. Glass cookware made in China will explode! In some instances their cookware will explode in the oven, but there are more instances of the glassware exploding after it has been removed from the oven. Apparently, the Chinese glass cannot absorb the shock of moving from oven heat to ambient temperature. A made-in-China glass cook ware sounds like a small bomb exploding and shards of glass and food are blown 10-20 feet distant.
 Quoting: Anonymous Coward 1378339

BORON is to rare and to expensive to use in cheap household plastics/ceramics/cookware ...

This element is used in expensive projects ...
 Quoting: Krispy71
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