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PYREX ® 90 mm Capillary Melting Point Tubes, One End Open | Glass Tubes | Laboratory Supplies | EMSCO Scientific Enterprises, Inc.
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GLASS-TYPES. I. SODA-LIME or SOFT GALSS: The raw materials are silica (sand), calcium carbonate and soda ash. The approximate composition is Na2O.CaO. - ppt download
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How pyrex is made - material, production process, manufacture, making, history, used, processing, components
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Corning Pyrex Borosilicate Glass Thiele Melting Point Tubes, 25mm Outer Diameter, 150mm Length (Case of 12): Science Lab Tubes: Amazon.com: Tools & Home Improvement
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