What are some chemicals used in the manufacturing of glass?

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    The ingredients in glass are:

    • Sand
    • Soda ash (sodium carbonate)
    • Limestone
    • Cullet (recycled glass)

    It can also contain feldspar, nepheline syenite, aplite, and sandspar. To make colored glass, glass makers add different chemicals:

    • Chromium (green)
    • Cobalt (blue)
    • Nickel (violet/brown)
    • Selenium metal (red)
    • Iron, sulfer, and carbon (amber)

     

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