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pyrex
has definitions from the field of chemistry
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[ noun ] (trademark) a borosilicate glass with a low coefficient of expansion; used for heat-resistant glassware in cooking and chemistry
Used in print (Francis J. Johnston and John E. Willard, "The...)Matheson highest purity tank chlorine was passed through a tube of resublimed * * f into an evacuated Pyrex system where it was condensed with liquid_air . The samples for liquid phase thermal reaction studies were prepared in Pyrex capillary_tubing 2.5 mm. i.d. and about 15 cm. long . In a_few experiments the tubes were made from standard 6 mm. i.d. Pyrex tubing of 1 mm. wall thickness . The photochemical_reaction cells consisted_of 10 mm. i.d. Pyrex tubing , 5.5 cm. long , diffraction effects being minimized by the fact that the light passed_through only liquid glass interfaces and not gas glass interfaces . These cells were used rather than square Pyrex tubing because of the tendency of the latter to shatter when thawing frozen carbon_tetrachloride . |
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