Rubidium peroxide is rubidium's peroxide with the chemical formula Rb<sub>2</sub>O<sub>2</sub>.
Rubidium peroxide can be produced by rapidly oxidizing rubidium in liquid ammonia at âÂÂ50ðC.
It can also be produced by pyrolysis of rubidium superoxide in vacuum.
Rubidium peroxide is a colourless to light yellow solid with the orthorhombic crystal structure.