Today we are going to make a real fountain. For this we need the following ingredients:
Mentos is a chewable dragee that is popular all over the world. The Mentos brand is owned by Perfetti Van Melle. The dragee was first produced in Holland in the early 1950s. The dragee is coated on the outside with a hard flavoring shell, under which there is a chewing component. Classic packaging contains 14 chocolates.
Cola is one of the most popular carbonated drinks among young people (after beer naturally). Contains caffeine, phosphoric acid, sugar and other useless ingredients. The name comes from kola nuts, originally used by beverage manufacturers as a source of caffeine. You can choose any other highly carbonated drink, but it is still better to choose Cola, since it is a classic.
When dragees get into Coca-Cola or any other carbonated drinks, the gas dissolved in the drink is actively released, leading to sharp foaming. It is noteworthy that the acid-base reaction practically does not participate in this process. The reason for foaming is in the roughness of the surface of the pellets, which serve as centers for the release of carbon dioxide. The process is also enhanced by additives in the beverage, such as the sweetener aspartame (sugar substitute). The sweetener reduces the surface tension of the liquid, which in turn facilitates gas evolution. The volume of the bottle also plays a role, i.e. ascending bubbles are secondary centers of gas evolution. Other ingredients that play a role in the gas evolution process are sodium benzoate (preservative) and caffeine in Coca-Cola; gum arabic and gelatin in chewable tablets. The strongest effect occurs with uncoated Diet Coke and Dragee, as they are rougher and more porous.
Additional research has shown that the reaction is due to the physical properties of the candy and is not related to the chemical composition.
To date, the record for the height of a Coca-Cola fountain is 9 meters, set by Jamie Heineman and Adam Savage, hosts of the Legend Busters. The previous record - about 5.5 m - was behind the discoverer of this phenomenon, Steve Spengler.
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