What is Potassium sulfide?
'''Potassium sulfide''' is a [[chemical compound]]. Its chemical formula is K<sub>2</sub>S. It contains [[potassium]] and [[sulfide]] [[ion]]s. The potassium is in its +1 [[oxidation state]]. ==Properties== Potassium sulfide is a colorless solid when it is pure. Sometimes it is not pure and it is yellow-brown. It reacts with water to make KHS, potassium hydrogen sulfide, and [[potassium hydroxide]]. It reacts with [[acid]]s to make [[hydrogen sulfide]] and a potassium [[salt]]. ==Preparation== Potassium sulfide is made by reacting [[potassium]] with [[sulfur]]. Many times the potassium is dissolved in liquid [[ammonia]]. It can also be made by reacting [[potassium sulfate]] with [[carbon]]. It is made when [[black powder]] is burned. ==Related pages== *[[Potassium sulfite]] *[[Sulfate]] [[Category:Potassium compounds]] [[Category:Sulfur compounds]]