Sodium potassium tartrate, commonly known as Rochelle salt, is a chemical compound with the molecular formula KNaCâ‚„Hâ‚„O₆·4Hâ‚‚O. It is a double salt of tartaric acid, composed of one molecule of potassium sodium tartrate and four molecules of water of crystallization. 1. Mechanism of Action Irritation of Gastrointestinal Tract: Sodium potassium …