• ecuador soccer jersey[2017-11-22]
  • toronto blue jays canada day jersey[2017-11-22]
  • 59 panthers jersey[2017-11-22]
  • wholesale jersey fabric[2017-11-22]
  • Low Price Bayer Leverkusen Jerseys[2017-11-22]
  • Cameroon Soccer Jerseys For Wholesale[2017-11-22]
  • wholesale rugby jerseys[2017-11-22]
  • Discount NHL Jerseys[2017-11-22]
  • belize soccer jersey[2017-11-22]
  • france football team jersey[2017-11-22]
  • Cheap Wholesale Hartford Whalers Jerseys[2017-11-22]
  • nike goalkeeper jersey[2017-11-22]
  • Cheap Broncos jerseys[2017-11-22]
  • Houston Colts Jerseys Discount Online[2017-11-22]
  • vancouver canucks old jerseys[2017-11-22]
  • best 2014 soccer jerseys[2017-11-22]
  • college football jerseys uk[2017-11-22]
  • cheap tottenham jersey[2017-11-22]
  • Valencia Jerseys at Low Price[2017-11-22]
  • Fashion Cheap Ukraine Soccer Jerseys[2017-11-22]
  • Login

    Types of Glasses: Uses & Properties

    An error occurred trying to load this video.

    Try refreshing the page, or contact customer support.

    www.thecommoditycodehq.coming up next: The Haber Process: www.thecommoditycodehq.commercial Uses & Chemistry

    You're on a roll. Keep up the good work!

    Take Quiz Watch Next Lesson
     Replay
    Your next lesson will play in 10 seconds
    • 0:03 What Is Glass?
    • 2:02 Soda-Lime Glass
    • 2:55 Borosilicate Glass
    • 3:45 Lead Glass
    • 4:28 Silica Glass
    • 5:06 Lesson Summary
    Add to Add to Add to

    Want to watch this again later?

    Log in or sign up to add this lesson to a Custom Course.

    Login or Sign up

    Timeline
    Autoplay
    Autoplay
    Create an account to start this course today
    Try it free for 5 days!
    Create An Account
    Lesson Transcript
    Instructor: Hemnath (Vikash) Seeboo

    Taught Science (mainly Chemistry, Physics and Math) at high school level and has a Master's Degree in Education.

    In this lesson, you'll learn about the different www.thecommoditycodehq.common types of glass that are available. You'll also learn how different chemical www.thecommoditycodehq.compositions of glass lead to different properties and uses.

    What Is Glass?

    Can you guess which material is www.thecommoditycodehq.commonly used to make smartphone screens, bottles, eye spectacles, microscopic slides, solar panels, and window panes? I bet you got it right… It is glass! Thanks to its countless applications, glass has bewww.thecommoditycodehq.come a vital part of our daily lives; however, many of its uses go unnoticed. Glass is a material that has been used since the Stone Age, and it is bewww.thecommoditycodehq.coming increasingly clear that modern life would not be possible without glass.

    Glass is an amorphous, or non-crystalline, solid material. An amorphous solid displays properties of both a solid and a liquid. Like liquids, an amorphous solid has atoms and molecules that aren't arranged in an orderly manner. Like solids, their atoms and molecules are rigidly fixed and are not free to move. Glass is known to be transparent, hard, chemically inert, biologically inactive, and an insulator towards heat and electricity. Glass is also a brittle material.

    What is glass made of? Believe it or not, sand is basically the main ingredient of all types of glass since it can provide silicon dioxide, SiO 2 . Essentially, sand is mixed and heated with other www.thecommoditycodehq.components. This molten mixture is then allowed to cool, and glass is eventually formed. You might have also noticed the existence of different types of glass. These glasses have different chemical www.thecommoditycodehq.compositions, which in turn give rise to different properties.

    For example, aluminium oxide is added to molten glass to increase its durability, while cerium is added during glass manufacturing so it can absorb infrared radiation. Glass can be given a desired color by adding transition metal www.thecommoditycodehq.compounds to the molten mixture. The type of glass that is manufactured depends on its intended usage. Let's now look at four of the most www.thecommoditycodehq.common glass www.thecommoditycodehq.compositions, their properties, and typical applications.

    Soda-Lime Silica Glass

    Soda-lime silica glass or soda-lime glass, is www.thecommoditycodehq.composed of around 70% sand (SiO2), 15% soda (Na2 O) and around 10% lime (CaO). Other materials can be added to impart specific properties. For example iron oxide can be added to produce green and brown soda-lime glasses. The soda used acts as a flux to reduce the melting temperature of the molten sand, while the lime is used as a stabilizer for the silica. Soda lime glass is relatively inexpensive, chemically stable, reasonably hard, and extremely workable. It is the most prevalent type of glass used in the world, and it is used in the making of window panes, dinnerware, bulbs, bottles and jars. Since soda-lime glass can be re-softened and re-melted, they can be recycled.

    Borosilicate Glass

    Have you ever used glasses that can tolerate sudden temperature changes without cracking or shattering? Think of that glass container which you have removed from a freezer and soon afterward heated in an oven. There are instances where thermal, mechanical, and chemical conditions are too harsh to use standard soda lime glass, and fortunately the borosilicate glass family has www.thecommoditycodehq.come to the rescue. Borosilicate glass consists of sand or silica, soda and lime with at least 5% boric oxide (B2 O3). Boron oxide expands very little when heated, thus making borosilicate glasses resistant to cracking in strong heat. Borosilicate glasses have high melting points and are also resistant to chemicals, thus making them suitable for microscopic lenses and slides, household cookware, and laboratory glassware such as tubes, beakers, and measuring cylinders.

    Lead Glass

    Lead glass or lead crystal glass, as you might have already deduced, contains lead. It is made up of 18-40% lead (II) oxide (PbO). The lead is tightly locked into the structure of glass so that it does not affect human health. Lead glass is relatively soft, and the presence of the high density of lead gives it a high refractive index, optical dispersion, and surface brilliance. Lead glass has excellent electrical insulating properties. Thus, thermometer tubing and decorative glass objects are also made from this lead glass. Lead is well-known to absorb gamma rays and other forms of harmful radiation and can, therefore, be used as radiation shielding for viewers who are using cathode rays.

    To unlock this lesson you must be a www.thecommoditycodehq.com Member.
    Create your account

    Register for a free trial

    Are you a student or a teacher?
    I am a teacher
    What is your educational goal?
     Back

    Unlock Your Education

    See for yourself why 10 million people use www.thecommoditycodehq.com

    Bewww.thecommoditycodehq.come a www.thecommoditycodehq.com member and start learning now.
    Bewww.thecommoditycodehq.come a Member  Back

    Earning College Credit

    Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

    To learn more, visit our Earning Credit Page

    Create an account to start this course today
    Try it free for 5 days!
    Create An Account
    Support