Rubidium is another alkali metal, has chemical symbol Rb and atomic number 37. Rubidium is a solid and silvery white metal at normal pressure and temperature, it is strong to cut and instantaneously oxidizes in the air making a black film of oxide, instead reacts violently with water producing Hydrogen gas and burns with a purple flame.
We suggest this element at the purity of 99,99% in various sizes and shapes glass ampoules, all filled with argon to prevent oxidization.
Very pure Rubidium metal element sample 0,1 gram 99,99% in argon sealed ampoule (dimensions: 10mm diameter x 30 cm long), the ampoule is put inside our glass vial professionally labeled. Very rare Rubidium element 37 sample.