Rubidium nitrate

Rubidium nitrate is a chemical compound of RbNO3. It is a stable nitrate of rubidium. When a flame test is performed, RbNO3 gives a mauve/light purple colour. Rubidium nitrate is an oxidant and should be kept away from combustible material.

Toxicity
Rubidium nitrate has ORL-RAT LD50 of 4625 mg/kg.