Club soda is a manufactured form of unflavored carbonated water, commonly used as a drink mixer. Potassium bicarbonate and/or potassium sulfate and/or sodium citrate are artificially added to replicate constituents commonly found in natural mineral waters.
In England, an artificial method for producing soda water was described in a pamphlet called Directions for Impregnating Water with Fixed Air, published in 1772 by Joseph Priestley. The pamphlet explained the process of dripping sulfuric acid onto chalk, which produced carbon dioxide CO2 which was captured in a bowl of agitated water. Priestley thought such carbonated water was a cure for scurvy and proposed the process to Captain James Cook to prevent scurvy during his second voyage to the South Seas. Priestley never really realized the commercial potential of his product, though he did refer to it as his "happiest discovery." In 1807, Benjamin Silliman, a Yale chemistry professor, began producing carbonated water under pressure and selling it in New Haven, Connecticut. In the 1830's Anyos Jedlik of Hungary opened a large-scale carbonated water factory. The original trademarked club soda was made by Cantrell & Cochrane of Dublin, Ireland in 1877.
As stain remover
The popular belief that carbonated water is a good remover of clothing stains, particularly those of red wine, is based on hearsay and anecdotal evidence. The dissolved gas in water acts as a temporary surfactant. There is no underlying chemical reason why carbonated water would be superior to plain water in stain removal.
- Funston, Lindsay (April 27, 2018). "What Is Seltzer - Is Seltzer Bad For You". Delish. Retrieved May 27, 2018.
- Johnson, Steven. The Invention of Air.
- Julie R. Thomson (31 October 2014). "The Difference Between Club Soda, Seltzer And Tonic Water". HuffPost.
- Wishnok, Pete. "How does club soda remove red wine stains?". Scientific American. Retrieved 15 April 2016.
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