Guest guest Posted May 3, 2001 Report Share Posted May 3, 2001 Phosphoric acid is deliberately added to soft drinks to give them a sharper flavor. It also slows the growth of molds and bacteria, which would otherwise multiply rapidly in the sugary solution. Almost all of the acidity of soda pop comes from the phosphoric acid and not from the carbonic acid from the dissolved CO2. You can verify this by measuring the pH of fresh and flat soda pop; there's very little difference. The phosphoric acid is corrosive (therefore it will dissolve a nail), but actually the acid concentration in soda pop is lower than that in orange juice or lemonade. Try submerging identical strips of magnesium (or iron staples) in each of these beverages overnight. Which beverage dissolves more metal? Which dissolves the metal fastest? Fruit juices and drinks are also tart, but they don't use phosphoric acid as a flavor additive. Phosphoric acid would cause many ions present in fruit juices to settle out as insoluble phosphates. These beverages get their tang from citric acid, a substance found in oranges, limes, lemons and grapefruits. Malic acid, found in apples and cherries, is added to many fruit juices. Fumaric acid is used in noncarbonated soft drinks, and tartaric acid gives grape-flavored candies a subtle sour flavor. All of these substances impart only tartness, without overpowering other flavors present. It takes 32 glasses of Alkaline water to neutralize the acid from one 12 oz. cola. When you drink cola, the body will use its own buffers, including calcium from the bones and DNA to raise the body's alkalinity levels, especially to maintain blood pH levels. This information was taken from General Chemisty online which I think would be a reliable source. Therefore, I expect a full apology from the person that said I was lying and expect doubters to try this : ) Quiz on Friday. Andyman Quote Link to comment Share on other sites More sharing options...
Guest guest Posted May 3, 2001 Report Share Posted May 3, 2001 Will the quiz consist of multiple choice or essay style questions? thanks for the info Bill > Phosphoric acid is deliberately added to soft drinks to give them a > sharper flavor. It also slows the growth of molds and bacteria, which > would otherwise multiply rapidly in the sugary solution. > > Almost all of the acidity of soda pop comes from the phosphoric acid > and not from the carbonic acid from the dissolved CO2. You can verify > this by measuring the pH of fresh and flat soda pop; there's very > little difference. > > The phosphoric acid is corrosive (therefore it will dissolve a nail), > but actually the acid concentration in soda pop is lower than that in > orange juice or lemonade. Try submerging identical strips of > magnesium (or iron staples) in each of these beverages overnight. > Which beverage dissolves more metal? Which dissolves the metal > fastest? > > Fruit juices and drinks are also tart, but they don't use phosphoric > acid as a flavor additive. Phosphoric acid would cause many ions > present in fruit juices to settle out as insoluble phosphates. These > beverages get their tang from citric acid, a substance found in > oranges, limes, lemons and grapefruits. Malic acid, found in apples > and cherries, is added to many fruit juices. Fumaric acid is used in > noncarbonated soft drinks, and tartaric acid gives grape-flavored > candies a subtle sour flavor. All of these substances impart only > tartness, without overpowering other flavors present. > > It takes 32 glasses of Alkaline water to neutralize the acid from one > 12 oz. cola. When you drink cola, the body will use its own buffers, > including calcium from the bones and DNA to raise the body's > alkalinity levels, especially to maintain blood pH levels. > > This information was taken from General Chemisty online which I think > would be a reliable source. Therefore, I expect a full apology from > the person that said I was lying and expect doubters to try this : ) > > Quiz on Friday. > > Andyman Quote Link to comment Share on other sites More sharing options...
Guest guest Posted May 3, 2001 Report Share Posted May 3, 2001 Fill-in-the-blank and True/False. Andyman > > Phosphoric acid is deliberately added to soft drinks to give them a > > sharper flavor. It also slows the growth of molds and bacteria, > which > > would otherwise multiply rapidly in the sugary solution. > > > > Almost all of the acidity of soda pop comes from the phosphoric > acid > > and not from the carbonic acid from the dissolved CO2. You can > verify > > this by measuring the pH of fresh and flat soda pop; there's very > > little difference. > > > > The phosphoric acid is corrosive (therefore it will dissolve a > nail), > > but actually the acid concentration in soda pop is lower than that > in > > orange juice or lemonade. Try submerging identical strips of > > magnesium (or iron staples) in each of these beverages overnight. > > Which beverage dissolves more metal? Which dissolves the metal > > fastest? > > > > Fruit juices and drinks are also tart, but they don't use > phosphoric > > acid as a flavor additive. Phosphoric acid would cause many ions > > present in fruit juices to settle out as insoluble phosphates. > These > > beverages get their tang from citric acid, a substance found in > > oranges, limes, lemons and grapefruits. Malic acid, found in apples > > and cherries, is added to many fruit juices. Fumaric acid is used > in > > noncarbonated soft drinks, and tartaric acid gives grape-flavored > > candies a subtle sour flavor. All of these substances impart only > > tartness, without overpowering other flavors present. > > > > It takes 32 glasses of Alkaline water to neutralize the acid from > one > > 12 oz. cola. When you drink cola, the body will use its own > buffers, > > including calcium from the bones and DNA to raise the body's > > alkalinity levels, especially to maintain blood pH levels. > > > > This information was taken from General Chemisty online which I > think > > would be a reliable source. Therefore, I expect a full apology > from > > the person that said I was lying and expect doubters to try > this : ) > > > > Quiz on Friday. > > > > Andyman Quote Link to comment Share on other sites More sharing options...
Guest guest Posted May 3, 2001 Report Share Posted May 3, 2001 Thank you Andyman! That is great info, and really valuable for anyone who is a soda addict (ahem! raises hand as a former Diet Coke addict). I remember my 7th grade science teacher (yes I can remember that far back in ancient history) saying something about this and I was cured of my soda addiction temporarily. This was brought to my attention again a few years ago and I have given them up entirely since then - well, maybe I have one once per month, but that's it, scout's honor! Thanks again. Jen B. > Phosphoric acid is deliberately added to soft drinks to give them a > sharper flavor. It also slows the growth of molds and bacteria, which > would otherwise multiply rapidly in the sugary solution. > > Almost all of the acidity of soda pop comes from the phosphoric acid > and not from the carbonic acid from the dissolved CO2. You can verify > this by measuring the pH of fresh and flat soda pop; there's very > little difference. > > The phosphoric acid is corrosive (therefore it will dissolve a nail), > but actually the acid concentration in soda pop is lower than that in > orange juice or lemonade. Try submerging identical strips of > magnesium (or iron staples) in each of these beverages overnight. > Which beverage dissolves more metal? Which dissolves the metal > fastest? > > Fruit juices and drinks are also tart, but they don't use phosphoric > acid as a flavor additive. Phosphoric acid would cause many ions > present in fruit juices to settle out as insoluble phosphates. These > beverages get their tang from citric acid, a substance found in > oranges, limes, lemons and grapefruits. Malic acid, found in apples > and cherries, is added to many fruit juices. Fumaric acid is used in > noncarbonated soft drinks, and tartaric acid gives grape-flavored > candies a subtle sour flavor. All of these substances impart only > tartness, without overpowering other flavors present. > > It takes 32 glasses of Alkaline water to neutralize the acid from one > 12 oz. cola. When you drink cola, the body will use its own buffers, > including calcium from the bones and DNA to raise the body's > alkalinity levels, especially to maintain blood pH levels. > > This information was taken from General Chemisty online which I think > would be a reliable source. Therefore, I expect a full apology from > the person that said I was lying and expect doubters to try this : ) > > Quiz on Friday. > > Andyman Quote Link to comment Share on other sites More sharing options...
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