Pullman: Early Downtown Businesses is the first joint exhibit between the Whitman County Historical Society (WCHS) and the Washington State University Libraries... Further copies of this material were depositied with the Whitman County Library and the Whitman County Historical Society.
In certain varieties of club soda, sodium citrate is employed as a flavoring agent. Sodium citrate is a common ingredient in Bratwurst, and is also used to contribute a tart flavor in commercial, ready-to- drink beverages and drink mixes. It is found in gelatin mix, ice-cream, jams, sweets, milk powder, processed cheeses, carbonated beverages, and wine.
Sodium Citrate (E331) is the sodium salt of citric acid. Like citric acid, it has a sour taste. Like other salts, it also has a salty taste. It is commonly known as sour salt and is mainly used as a food additive, usually for flavor or as a preservative. It gives club soda both its sour and salty flavors.