Which means that DPSG sodas often appear in Coke or Pepsi vending machines, sometimes even in place of Coke or Pepsi's equivalent brand. For example, Coke's Pibb, their version of Dr Pepper, is harder to find in the New York City area because the local Coke bottler has long held the area rights to Dr Pepper.
Potassium chloride, KCl, is an electrolyte, because in water it dissociates into solvated potassium and chloride ions.
KCl is potassium chloride. Potassium is an alkali metal that needs to lose one valence electron to expose a full outer shell. Chloride is a halide that needs to gain one valence electron to fill its outer shell. Potassium will 'donate' an electron to chloride, which results in potassium having a 1+ charge and chloride having a 1- charge.