Sodium potassium sulfide composition and method for preparing same

摘要

Describes an aqueous composition of sodium potassium sulfide and methods for preparing this inter-alkali metal sulfide. One method described is the addition of sodium hydrosulfide to potassium hydroxide in an aqueous reaction medium. The aqueous sodium potassium sulfide composition preferably contains a slight excess of alkali metal hydrosulfide, e.g., sodium hydrosulfide. The sodium potassium sulfide is useful as a depilatory for removing hair from the hides of animals consumed as food.