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10 Cards in this Set
- Front
- Back
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What is added to silicon dioxide to make soda-lime glass?
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Sodium Carbonate and either Calcium Carbonate or Calcium Oxide
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What kind of solid is glass?
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Amorphous Solid (hence, it is not crystalline)
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What is the melting point of pure silica?
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1650 (±75) °C
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What is the melting point of Soda-lime glass
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about 1000 °C
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What is the most produced glass?
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Soda-lime glass. It is used in most bottles, windows, and drinking glasses.
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What is the composition of borosilicate glass?
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70% silica, 10% boric oxide, 8% sodium oxide, 8% potassium oxide, and 1% calcium oxide
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What special property does borosilicate glass have?
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It is heat-resistant, it has a low refractive index
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What is "Crown Glass"
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Glass used in optical lenses because of its low refractive index
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Why does "Lead Crystal" sparkle?
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It has a high index of refraction.
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What percentage of lead oxide is typical in "lead crystal" glass?
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Anywhere from 24%-35%
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