Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

Element Details

Element Icon

RUBIDIUM (37Rb85.4678)

Select a form or compound to view products.

Element Form


Element Description

Rubidium is a soft, silvery-white metal belonging to the alkali group. It is second in the categories of most electropositive and most alkaline elements. 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.

Property Name Property Value Property Name Property Value
Atomic Code (37Rb85.4678) Atomic Volume 55.9W/D
CAS # 7440-17-7 First Ionization Energy 96K-cal/g-mole
Electronegativity 0.8Pauling's
Melting Point 39°C Covalent Radius 2.16Angstroms
Boiling Point 688°C Mohs Hardness @ 20°C 0.3
Density 1.532g/cm3 Electrical Resistivity 12.1µΩ-cm
Specific Heat @ 25°C 0.033cal/g°C Crystal Structure Cubic, body centered
Heat of Fusion 6.14k-cal/g-atom Thermal Neutron Cross Section 0.73barns/atom
Heat of Vaporization 212k-cal/g-atom Electron Work Function 2.09eV

Chemicals

Life Science

Metals & Materials

Catalysts

Analytical & Labware

">