Flame
Faint blue
Clean Bunsen flame, air valve open
    Spectroscope380–780 nm
    Emission spectroscopy · Bunsen burner ≈ 1,500 °C

    Flame Test Bench

    Choose an element or compound to throw it into the burner. Metal ions absorb the flame's heat, then release it as light at wavelengths unique to each element.

    Colors the flame No visible color Gas or volatile liquid Never isolated in weighable amounts