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Rubidium (Rb) Metal

Rubidium (Ru) is a soft, silvery-white alkali metal. It is very electropositive and alkaline. Rubidium forms amalgams with mercury and alloys with gold, cesium, sodium, and potassium. It is highly reactive, igniting spontaneously in air and reacting vigorously in water. Rubidium has a high heat capacity and heat transfer coefficient.

Purity 99.9%
Typical Applications

Most of the rubidium applications are in research. It has been used as a deodorant to remove oxygen from vacuum tubes of photocells.

Packaging Options

Vacuum sealed in glass ampoules


Rubidium (Rb) Metal TSCA (SARA Title III) Status: Yes
For further information, please call the EPA, Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902
Rubidium (Rb) Metal CAS Number: 7440-17-7

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