ˈɔːlsoʊ, ɪɾ ɪz fˈɔːɹmd ˌɔn hˈiːɾɪŋ ɡˈæliəm ɪn ˈɛɹ ɔːɹ baɪ θˈɜːməli dˌiːkəmpˈoʊzɪŋ ɡˈæliəm nˈaɪtɹeɪt æt tˈuːhˈʌndɹɪd tˈuːhˈʌndɹɪd fˈɪfti dᵻɡɹˈiːz sˈiː.
Also, it is formed on heating gallium in air or by thermally decomposing gallium nitrate at 200–250 °C.