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    Glass

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    darshinyyvijayan
    Glass is a hard, brittle, transparent material made primarily from silica. The main types of glass are fused silica glass, soda-lime glass, and borosilicate glass, which differ in their composition and properties. Fused silica glass has a high melting point and does not expand or contract easily, making it useful for telescope lenses. Soda-lime glass has a low melting point and is easily shaped, making it suitable for glass containers. Borosilicate glass can withstand high temperatures and chemical reactions, so it is often used for laboratory glassware.

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    Glass

    Uploaded by

    darshinyyvijayan
    10 views2 pages
    Glass is a hard, brittle, transparent material made primarily from silica. The main types of glass are fused silica glass, soda-lime glass, and borosilicate glass, which differ in their composition and properties. Fused silica glass has a high melting point and does not expand or contract easily, making it useful for telescope lenses. Soda-lime glass has a low melting point and is easily shaped, making it suitable for glass containers. Borosilicate glass can withstand high temperatures and chemical reactions, so it is often used for laboratory glassware.

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    Glass is a hard, brittle, transparent material made primarily from silica. The main types of glass are fused silica glass, soda-lime glass, and borosilicate glass, which differ in their composition and properties. Fused silica glass has a high melting point and does not expand or contract easily, making it useful for telescope lenses. Soda-lime glass has a low melting point and is easily shaped, making it suitable for glass containers. Borosilicate glass can withstand high temperatures and chemical reactions, so it is often used for laboratory glassware.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    10 views2 pages

    Glass

    Uploaded by

    darshinyyvijayan
    Glass is a hard, brittle, transparent material made primarily from silica. The main types of glass are fused silica glass, soda-lime glass, and borosilicate glass, which differ in their composition and properties. Fused silica glass has a high melting point and does not expand or contract easily, making it useful for telescope lenses. Soda-lime glass has a low melting point and is easily shaped, making it suitable for glass containers. Borosilicate glass can withstand high temperatures and chemical reactions, so it is often used for laboratory glassware.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
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    of 2

    11/11/22, 11:09 AM Glass

    Glass

    8.2 Glass

    Main component: silica or silicon dioxide


    Main characteristics;
    Brittle
    Chemically inert
    Hard
    Transparent
    Heat insulator
    Does not conduct electricity
    Not permeable to gas and liquid

    Types of glass and properties

    Types of glass Composition

    Fused silica glass Silica

    Soda-lime glass Silica


    Sodium carbonate
    Calcium carbonate

    Borosilicate glass Silica


    Sodium carbonate
    Calcium carbonate
    Boron oxide
    Aluminium oxide

    Lead glass Silica


    Sodium carbonate
    Lead(II) oxide

    Types of glass Properties

    Fused silica High melting point


    Does not expand or contract easily
    glass

    Soda-lime Low melting point


    Easily shaped
    glass Cannot withstand high temperature

    Borosilicate High melting point


    Expands and contracts very little when there is temperature change
    glass Can withstand high temperature and chemical reactions

    Lead High refractive index


    High density
    glass
    Shiny

    Types of glass Example

    Fused Lens of telescope

    silica

    glass

    Soda-lime Glass container

    glass

    Borosilicate Laboratory glassware

    glass

    https://question.pandai.org/note/read/kssm-ch-10-08-02/KSSM-F4-CH-08-02 1/2
    11/11/22, 11:09 AM Glass

    Lead Prism

    glass

    © 2022 Pandai.org All Rights Reserved Made with 

    https://question.pandai.org/note/read/kssm-ch-10-08-02/KSSM-F4-CH-08-02 2/2

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