chemistry of carbonation
TRANSCRIPT
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By: Emily Wieman
CHEMISTRY OF CARBONATION
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Summary• We see soft drinks everyday• Many of us do not know what gives
them their flavor
• Carbonation
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Chemistry• Carbonation is having CO2
dissolved in another liquid• H2O +CO2=H2CO3• This is a double arrow
reaction so it can go back if put in right conditions• Without carbonation the
flavor of the beverages would be grotesque (“The Fizz of Coca-Cola” 1)
http://ursoftstore.blogspot.com/2011/06/seven-nightmare-space-foods-for.html
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Escape of Carbonation• When opening a soda you
often hear that SHHHH noise.• Let me explain……• This noise is caused by the
release of the Co2 atoms• This is the reason that is
your drink is flat it means that too much of your carbonation has escaped. (“The Fizz of Coca-Cola” 1)
http://www.beautyangleshop.com/Article/Fashion/201008/1570.html
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Prevention• What can be done to
preserve the flavor• One method:• Cooling automatically slows
down the particles from escaping into the air.• It also helps the soft drinks
to contain more carbonation (Sonstroem 1).
http://www.seriouseats.com/2010/01/study-nearly-half-of-soda-fountains-contaminated-with-coliform-bacteria.html
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Prevention continued….
• Another method:• Some companies add extra
CO2 at the top so that if any escape it is not all of them (Sonstroem 1)• Another Method:• Some sodas, such as coke,
add chemicals such as phosphoric acid to make up for the lack of carbonation (“The Fizz of Coca-Cola” 1)
http://www.csmonitor.com/Business/Latest-News-Wires/2012/0410/Coke-stock-possibly-worth-130-million-found-at-a-garage-sale
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Implication•In everyday life, we are drinking these carbonated beverages constantly•In order to improve our soft drink experience we need to take into consideration carbonation.
http://indianapublicmedia.org/eartheats/soda-tax-chance/
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Works cited• "Carbon Dioxide." infoplease. Pearson Education, 2012. Web. 13 Apr. 2014. <http://www.infoplease.com/encyclopedia/science/carbon-dioxide.html>.• "The Fizz of Coca-Cola." CurioCity. Let's Talk Science, 16 Feb. 2006. Web. 28 Apr. 2014. <http://www.explorecuriocity.org/ Content.aspx?contentid=306>.• Sonstroem, Eric. "From Fizz To Flat: The Science Of Soda Pop." Moment of Science. The Trustees of Indiana University, 18 Oct. 2010. Web. 13 Apr. 2014. <http://indianapublicmedia.org/amomentofscience/fizz-flat-science-soda-pop/>.