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Alka-Seltzer is an effervescent antacid and pain reliever owned by Bayer since 1978. First marketed by the Dr. Miles Medicine Company of Elkhart, Indiana , United States , Alka-Seltzer contains three active ingredients: aspirin (acetylsalicylic acid or ASA), sodium bicarbonate , and anhydrous citric acid . [ 1 ]
The company is known for inventing products such as Alka-Selzer and One-A-Day vitamins. [1] Miles operated as an independent firm from 1884 until 1979 and as a wholly owned subsidiary of Bayer AG from 1979 until 1995. At the company's peak in the 1960s and 1970s, it employed 3,300 people and produced more than two dozen products. [2]
It can be found in the milk minicontainers used with coffee machines. The compound is the product of antacids, such as Alka-Seltzer, when they are dissolved in water. [citation needed] The pH range of a solution of 5 g/100 ml water at 25 °C is 7.5 to 9.0.
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[21] [22] [23] Common ingredients include citric acid and sodium bicarbonate, which react when in contact with water to produce carbon dioxide. Effervescent antacids may also contain aspirin, [24] sodium carbonate, or tartaric acid. [25]
Upon further investigation of the ingredients section on White Claw's label, they break down their hard seltzer formula as follows: purified carbonated water, alcohol, natural flavors, cane sugar ...
Gas-forming agents in effervescent tablet and powder formulations can also double as a buffering agent, one example being sodium bicarbonate, used in Alka-Seltzer. [197] Taking vitamin C with aspirin has been investigated as a method of protecting the stomach lining.
In the experiment, a film canister is filled with water, an effervescent tablet (commonly Alka-Seltzer) is added and the canister tightly sealed. After a short time, the pressure of the carbon dioxide is great enough to cause the body of the canister to be launched into the air with a popping sound. The canister may be embellished with paper ...