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No. "Phosphate sodas" use phosphoric acid to give the drink a sour taste without adding any particular flavor, because you don't necessarily want lemon or lime in your cherry phosphate. Some sodas, notably Coca Cola, still use phosphate for this purpose.

In both phosphate sodas and "normal" modern sodas, the fizz comes from carbonated water. Carbon dioxide is bubbled through water, which forces some of the gas to dissolve into the water in the same way that an aquarium aerator oxygenates your fish's water. However, since the process is performed under high pressure, more CO2 dissolves into the water than the water could contain under normal pressure. Still under pressure, the carbonated water is mixed with the drink syrup and sealed in a can.

When you open the can, the pressure is released. Since the water now contains more CO2 than it's allowed to under the current pressure, the carbon dioxide bubbles out and makes your drink fizz!

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11y ago

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