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Glass

 
8.2  Glass
 
Main Component
Silica or silicon dioxide.
 
Main Characteristics of Glass
  • Brittle
  • Chemically inert
  • Hard
  • Transparent
  • Heat insulator
  • Does not conduct electricity
  • Not permeable to gas and liquid
 
This is an infographic titled ‘Types of glass.’ It features a central blue circle with the title, connected by arrows to four other blue circles. These circles are labeled ‘Fused silica glass,’ ‘Soda-lime glass,’ ‘Borosilicate glass,’ and ‘Lead glass.’ The background is white, and the Pandai logo is at the bottom center.
 
Type of Glass
Fused Silica Glass
  • Composition:
    • Silica
  • Properties:
    • High melting point
    • Does not expand or contract easily
  • Example:
    • Lens of telescope
Soda-Lime Glass
  • Composition:
    • Silica
    • Sodium carbonate
    • Calcium carbonate
  • Properties:
    • Low melting point
    • Easily shaped
    • Cannot withstand high temperature
  • Example:
    • Glass container
Borosilicate Glass
  • Composition:
    • Silica
    • Sodium carbonate
    • Calcium carbonate
    • Boron oxide
    • Aluminium oxide
  • Properties:
    • High melting point
    • Expands and contracts very little when there is temperature change
    • Can withstand high temperature and chemical reactions
  • Example:
    • Laboratory glassware
Lead Glass
  • Composition:
    • Silica
    • Sodium carbonate
    • Lead(II) oxide
  • Properties:
    • High refractive index
    • High density
    • Shiny
  • Example:
    • Prism
 

 

 

 

The views expressed in the notes here are those of the contributor and don’t necessarily represent the views of pandai.

Glass

 
8.2  Glass
 
Main Component
Silica or silicon dioxide.
 
Main Characteristics of Glass
  • Brittle
  • Chemically inert
  • Hard
  • Transparent
  • Heat insulator
  • Does not conduct electricity
  • Not permeable to gas and liquid
 
This is an infographic titled ‘Types of glass.’ It features a central blue circle with the title, connected by arrows to four other blue circles. These circles are labeled ‘Fused silica glass,’ ‘Soda-lime glass,’ ‘Borosilicate glass,’ and ‘Lead glass.’ The background is white, and the Pandai logo is at the bottom center.
 
Type of Glass
Fused Silica Glass
  • Composition:
    • Silica
  • Properties:
    • High melting point
    • Does not expand or contract easily
  • Example:
    • Lens of telescope
Soda-Lime Glass
  • Composition:
    • Silica
    • Sodium carbonate
    • Calcium carbonate
  • Properties:
    • Low melting point
    • Easily shaped
    • Cannot withstand high temperature
  • Example:
    • Glass container
Borosilicate Glass
  • Composition:
    • Silica
    • Sodium carbonate
    • Calcium carbonate
    • Boron oxide
    • Aluminium oxide
  • Properties:
    • High melting point
    • Expands and contracts very little when there is temperature change
    • Can withstand high temperature and chemical reactions
  • Example:
    • Laboratory glassware
Lead Glass
  • Composition:
    • Silica
    • Sodium carbonate
    • Lead(II) oxide
  • Properties:
    • High refractive index
    • High density
    • Shiny
  • Example:
    • Prism
 

 

 

 

The views expressed in the notes here are those of the contributor and don’t necessarily represent the views of pandai.
Chapter : Manufactured Substances in Industry
Topic : Glass
Form 4 Chemistry
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