Rubidium nitrate 
 Chemical formula (Formula): RbNO3 
 Relative molecular mass (Formula weight): 147.47 
 Quality standards: 
 Name 
 RbNO3 content of not less than,% 99.5 
 Impurity content is not greater than, 
 % Lithium (Li) 0.001 
 Sodium (Na) 0.01 
 Potassium (K) 0.05 
 Calcium (Ca) 0.005 
 Magnesium (Mg) 0.001 
 Aluminum (Al) 0.005 
 Iron (Fe) 0.0005 
 Lead (Pb) 0.0005 
 Chlorine (Cl) 0.005 
 Silicon dioxide (SiO2) 0.001 
 Aqueous reaction Qualified 
 Water insoluble matter 0.02