Why is carbonic acid preferred to other acids in fizzy drinks?
- the carbonic acid (dissolved carbon dioxide in water) is not toxic
- the carbonic acid (dissolved carbon dioxide in water) is not so corrosive
- the carbonic acid (dissolved carbon dioxide in water) has a pleasant taste
- the carbonic acid (dissolved carbon dioxide in water) is cheaper
- the carbonic acid (dissolved carbon dioxide in water) is very simple to prepare and very accessible
Fizzy drinks may contain a number of acids. In Pepsi and Coca Cola we commonly find Phosphoric Acid. Other beverages may contain Citric Acid. The fizzy bubbles is due to a gas known as Carbon Dioxide. Carbonic Acid is also a name sometimes given to solutions of carbon dioxide in water, which contain small amounts of H2CO3
No. Many acids are harmless in low concentrations. Vinegar, a dilute solution of acetic acid, is a a common household substance that you can actually put on food. Carbonic acid is a componnent of all fizzy drinks. Some bases such as magnesium hydroxide (milk of magnesia) are used to treat upset stomachs.
There are lots of acids that we use on a daily basis, such as: Citric acid, found in fruits and vegetables. Acetic acid, found in vinegar. Tartaric acid, found in tea. Sulfuric acid, found in some batteries. Acetylsalicylic acid (a.k.a. aspirin). Carbonic acid in fizzy drinks. Hydrochloric acid found in your stomach. Phosphoric acid, used in drinks and detergents.
No. "Fizzy drinks" contain carbonic acid. Some soft drinks (including some that don't "fizz", like lemonade) contain other acids (for example, many contain small amounts of citric acid, and Coca-Cola contains small amounts of phosphoric acid). However, no carbonated beverage with which I am familiar uses sulfuric acid as an actual ingredient (though it may be present in trace amounts).
Fizzy drinks consist of carbon dioxide forced into water under pressure, forming carbonic acid. It is this acid that gives fizzy beverages their sharp taste. At higher temperatures the carbonic acid becomes unstable and reverts to carbon dioxide and water, which increases pressure. additionally, raising the temperature of any gas in a closed container also increases pressure. If the pressure becomes too great, the container will explode.
The 'fizzyness' in fizzy drinks is carbonic acid, or H2CO3. It is pumped into the drink at high pressure but it is very unstable. When opening the bottle, the pressure is released and the carbonic acid falls apart in carbon dioxide and water. In chemical terms: H2CO3 -> CO2 + H2O The carbon dioxide can be seen as the little bubbles floating upwards in the drink. It is also the reason for the tickely feeling…
The acids are part of what the flavors stand out. They cut some of the thick build up in the mouth and throat and how clean the mouth and make it satisfying and thirst quenching. -------------------------- There is also carbonic acid in Cola as a result of the carbonation process (that makes coal fizzy).